PHIVERSITY OF CALIFORNIA PUBLICATIONS COLLEGE OF AGRICULTURE AGRICULTURAL EXPERIMENT STATION BERKELEY, CALIFORNIA COMMERCIAL FERTILIZERS BY P. L. HIBBARD BULLETIN No. 315 November, 1919 UNIVERSITY OF CALIFORNIA PRESS BERKELEY 1919 EXPERIMENT STATION STAFF Heads of Divisions Thomas Forsyth Hunt, Dean. Edward J. Wickson, Horticulture CEmeritus). Walter Mulford, Forestry, Director of Resident Instruction. Herbert J. Webber, Director Agricultural Experiment Station. B. H. Crocheron, Director of Agricultural Extension. Hubert E. Van Norman, Vice-Director; Dairy Management. James T. Barrett, Acting Director of Citrus Experiment Station; Plant Pathology. William A. Setchell, Botany. Myer E. Jaffa, Nutrition. Charles W. Woodworth, Entomology. Ralph E. Smith, Plant Pathology. J. Eliot Coit, Citriculture. John W. Gilmore, Agronomy. Charles F. Shaw. Soil Technology. John W. Gregg, Landscape Gardening and Floriculture. Frederic T. Bioletti, Viticulture and Enology. Warren T. Clarke, Agricultural Extension. John S. Burd, Agricultural Chemistry. Charles B. Lipman, Soil Chemistry and Bacteriology. Clarence M. Haring, Veterinary Science and Bacteriology. Ernest B. Babcock, Genetics. Gordon H. True, Animal Husbandry. Fritz«W. Woll, Animal Nutrition. W. P. Kelley, Agricultural Chemistry. H. J. Quayle, Entomology: Elwood Mead, Rural Institutions. H. S. Reed, Plant Physiology. J. C. Whitten, Pomology. fFRANK Adams, Irrigation Investigations. C. L. RoADHOUSE, Dairy Industry. R. L. Adams, Farm Management. F. L. Griffin, Agricultural Education. John E. Dougherty Poultry Husbandry. S. S. Rogers, Olericulture. L. J. Fletcher, Agricultural Engineering. Edwin C. Voorhies, Assistant to the Dean. Division of Agricultural Chemistry John S. Burd Paul L. Uibbard Dennis R. Hoagland Walter H. Dore Guy R. Stewart James C. Martin t In co-operation with office of Public Roads and Rural Efn^rineerins, U. S. Department of Agi'iculture. COMMERCIAL FERTILIZERS By p. L. HIBBARD This bulletin comprises the results of the fertilizer inspection work of the California Fertilizer Control* for the fiscal year ending June 30, 1919. PURPOSE AND FUNCTIONS OF THE FERTILIZER CONTROL The duty of the Fertilizer Control is: First: To issue certificates of registration to manufacturers and dealers who have complied with the law by filing a sworn statement of composition and sources of the fertilizers they wish to sell. Second: To analyse these fertilizers as found in the open market and publish the results for the information of the public. If a manu- facturer sells fertilizers which are materially below his guarantee in composition or value he is subject to prosecution and fine. By this means it is intended to insure to purchasers that the fertilizers they buy shall be substantially as good as represented. By a study of the reports of analyses of fertilizers, the consumer should be able to determine whether the materials he buys are sold for a fair price, and whether he obtains fertilizers of the desired composi- tion. In short, the function of the Fertilizer Control is to see that the manufacturer gives the consumer a square deal. MAINTENANCE OF GUARANTEES Every manufacturer is required by law to guarantee the percentage of nitrogen, phosphoric acid and potash in the fertilizers he sells. Owing to difficulties of sampling and analysis the law permits a maximum deficiency of 0.25% nitrogen, 1.00% phosphoric acid, and 0.50% potash from the figures guaranteed. Greater deficiences than these are re- garded as infractions of the law and are indicated in the report of analyses in black-faced type. Some manufacturers uphold their guarantees better than others. The following table is a condensed report of the deficiencies found in the main table of analyses. It summarizes the work done in this labora- tory on each manufacturer's goods. The columns headed Deficiencies — -per cent, of -possible, may be used for comparison of the various com- panies as to probability of meeting their guarantees. The other *General Laws of California, Act 1157, Statutes of 1903, page 259 et seq. approved March 20, 1903. 198 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION columns are necessary to show how these figures were obtained. In cases where very few analyses are reported for a manufacturer, the figures should be taken with caution, as perhaps not properly repre- sentative. When several samples of one manufacturer's goods were analysed the figures may be accepted as probably a fair indication of the reliability of his guarantee. In general, manufacturers have more than maintained their guaran- tees, so that an average of all the analyses would show a substantial increase over the amount guaranteed. MAINTENANCE OF GUARANTEES BY MANUFACTURER a Manufacturer 'iz, ^ Agricultural Chemical Works.. 8 American Agricultural Chemi- cal Co 6 Citrus Fertilizer Co., 2 Cudahy Packing Co 2 Fruit Growers Supply Co 5 General Fertilizer Assn 11 Germain Seed & Plant Co 4 Hauser Packing Co 7 Hawaiian Fertilizer Co 6 Mountain Copper Co 1 Pacific Bone Coal & Fertiliz- ing Co 12 Pacific Guano & Fertilizer Co. 31 Rogers, Brown & Co 3 Southern California Fertilizer Co 3 Western Fertilizer Co 2 Western Meat Co 16 Wilson & Co 14 3 S ?2 1^ CC 03 6 2 2 11 14 5 24 8 3 14 51 7 5 2 29 19 i^ '^ G S H o o cs Deficiencies In guarantees In valuation 15 34 16 6 3 22 34 10 48 14 3 31 120 15 14 6 60 40 Per cent Per cent No. of No. of possible possible 8 3 4 11 2 3 7 1 1 2 3 23 13 12 23 14 11 6 7 7 3 7 1 1 4 1 2 1 1 20 9 7 16 7 4 3 5 a to tH O 3 o3'3 12 2 6 11 2 2 2 13 1 1 8 8 Owing to the possibility of misunderstanding, the figures for percentage deficiences are not given in above table in cases where less than four samples were analyzed. Fertilizers sold on Station analysis, and some others, are not given a valuation in the table of analyses, hence the number of such samples is deducted from the total number analyzed, in computing deficiences in valuation. Bulletin 315 COMMERCIAL fertilizers 199 SUMMARY OF DEFICIENCIES In the analyses of the above samples, the following number of defi- ciencies greater than those allowed by law occm'red: Available phosporic acid (total when available is not guaratneed) 9 Total nitrogen •. 31 Potash 5 In Valuation ^ 14 These deficiencies were found in 41 samples. Of the total number of valuations reported in this bulletin 68% are above the amount guaranteed while 32% fall below. MECHANICAL CONDITION OF FERTILIZERS A good degree of fineness is one of the essential qualities of a good fertilizer. It may be assumed that the finer the material the higher the availability, hence the consumer should insist on having finely ground fertilizers. Unfortunately, some manufacturers are at times careless in regard to the fineness of their goods. The insistent demand of the con- sumer is the most effective means of correcting such carelessness. Besides the low agricultural availability and the difficulty in apply- ing coarse fertilizers, it is almost impossible to obtain adequately repre- sentative samples of such goods for analysis. This is a prolific source of dissatisfaction and disagreement between buyers and sellers. During handling and transportation a coarsely ground tankage will separate so that the top of the sack contains the coarser material, high in nitrogen, while the bottom contains the finer parts of bone, high in phosphoric acid. A mixture of coarse bone meal with sulfate of potash will separate into coarse bone at the top and excess of potash at the bottom. One of the chief reasons for the existence of the fertilizer manu- facturer is that he is better prepared than the farmer to grind and mix the goods he sells, and the farmer should insist that he do it well. CAUTION IN REGARD TO LABELING FERTILIZER PACKAGES The law expressly states that every package of fertilizer shall be accompanied by a plainly printed label giving the brand name, analysis, and source of the materials in the package. This requirement is not satisfactorily met by some manufacturers and dealers. Farmers are hereby cautioned that if they buy improperly or inadequately labeled fertilizers or goods not sold by properly registered dealers or their authorized agents they lose the protection afforded by the Fertilizer Control. Consumers should insist that fertilizer tags show plainly both the percentage and the derivation of each ingredient. A verbal state- 200 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION ment given by selling agent should not be accepted as adequate. The honest manufacturer is willing to guarantee his goods properly, and the farmer will best serve his own interests by dealing with no other. FERTILIZER VALUATIONS One per cent, of a ton, 20 pounds, is called a unit." Computation of the value of a fertilizer is simplified by use of the ^'unit." To find the commercial value of a fertilizer, multiply the per cent, of each in- gredient by the price per unit and add the products. The sum thus found is the value per ton at the prices used. If it is desired to use such calculations for determining the amount which should be paid for goods, or the rebate to which the buyer is entitled, owing to the goods delivered being below the guaranty, it can only be satisfactorily done if a definite price per unit has been agreed upon between buyer and seller. But for the mere purpose of showing the relative values of goods to guar- anties, it is not at all necessary that the prices adopted should be the exact market prices. Thus it is that the Fertilizer Control in attempting to show the relation between values found and values claimed, uses a schedule which is admittedly only an approximate average of market values. Owing to market fluctuations, differences in cost of delivery at different points, and other causes, it is impossible to obtain true average market prices, but if the reader will bear in mind the true pur- pose of the valuations reported, these will have served their turn and he will not be led to assume that the experiment station is dictating the prices at which fertilizers shall be sold. SCHEDULE OF VALUES FOR 1918-1919 Per pound Per unit Nitrogen from blood $0.31 $6.20 Nitrogen from tankage and bone .30 6.00 Nitrogen from sulphate of ammonia .30 6.00 Nitrogen from nitrate of soda .30 6.00 Phosphoric acid, available from rock super .06 1.20 Phosphoric acid, total from bone or tankage .06 1.20 Potash, water soluble .20 4 00 SCOPE OF INSPECTION During the year 240 samples of fertilizers and fertilizing materials were received at this laboratory. Of this number 10 were sent by farmers under the two-dollar fee provision, 161 were taken by inspectors from purchasers' goods upon the request of the purchasers, and 46 were taken by inspectors from goods in the hands of agents and manufacturers. 23 samples of a miscellaneous nature are omitted from the tables. Bulletin 315 COMMERCIAL FERTILIZERS 201 The following classification may be made of samples reported in this bulletin : Bat guano 3 Bird guano 2 Blood : 9 Bone Meal 24 Complete fertilizer 65 Fish Meal 14 Garbage tankage 4 Incomplete mixed fertiHzer 30 Nitrate of soda 3 Sulphate of ammonia 4 Superphosphate 14 Tankage 43 REGISTERED MANUFACTURERS AND DEALERS The following manufacturers and dealers in commercial fertilizers obtained certificates of registration under the provisions of the Cali- fornia fertilizer law, for the fiscal year beginning July 1, 1918. A list is also given of the brands of fertilizers and fertilizer materials offered for sale by them. According to the sworn returns of dealers registered for the fiscal year ending June 30, 1918, their entire sales in the state amounted to 32,036 tons. Incomplete returns for the year ending June 30, 1919, indicate approximately 42,000 tons. No dealer or manufacturer, except those who have certificates of registration from the University of California, and their authorized agents, can legally sell fertilizers in this state. No person or company has any right to use any registration number except in connection with the firm name to which the registration certificate of such number has been issued; and no person or company to whom a registration number has been assigned has any right to allow any other person or company to use said registration number; any number so used is a fraud. No agent has a right to use his principals' registration number in connection with his own name. Agricultural Chemical Works, Los Angeles, Cal. Registration No. 8 Bat Guano Nitrate of Soda Blood Sulphate of Ammonia Bone Meal Superphosphate Fish Guano Tankage Gypsum Special Mixtures to order Kelp 202 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION American Agricultural Chemical Co., California Works, Los Angeles, Cal. Registration No. 1 Acid Phosphate Blood Bradley's California Vegetable Bradley's Hay & Grain No. 1 Bradley's Hay & Grain No. 2 Bradley's Lawn Bradley's Lemon Tree Bradley's Nursery Stock Bradley's Orange and Lemon Bradley's Special Nursery Stock Bradley's Tree and Vine Fish Meal Nitrate of Soda Packers Fertilizer Assn. Special 4-10- Raw Mineral Phosphate Rock Sulphate of Ammonia Sulphate of Potash Tankage Special Brands to order Bone Meal Anaheim Beef and Provision Company, Anaheim, Cal. Registration No. 88 Tankage Rogers Brown & Co., Los Angeles, Cal. Registration No. 85 Blood Fish Tankage Nitrate of Soda Packing House Tankage Sulphate of Ammonia Superhosphate Whale Bone Meal Whale Meat and Blood Whale Meat and Bone Blood Steamed Bone and Blood Meal. California Fertilizer Works, San Francisco, Cal. Registration No. 3 Special Mixtures Chapman, I. S. & Co., San Bernardino, Cal. Registration No. 96 Blood Bone Meal Chapman's Orchard Brand Fertilizer Nitrate of Soda Superphosphate Tankage Special Mixtures to Order Bulletin 315 COMMERCIAL FERTILIZERS 203 Cudahy Packing Co., Los Angeles, Cal. Registration No. 79 High Grade Ground Blood Low Grade Ground Blood High Grade Fish Meal High Grade Fish Meal B High Grade Ground Tankage A, B. Low Grade Ground Tankage Special Lawn Tankage Formula Blood Bone Nitrate of Soda Fruit Growers Supply Company, Los Angeles, Cal. Registration No. 90 Tankage Other Samples G. F. A. No. 6 Orange and Lemon No. 1 General Fertilizer Association, San Bernardino, Cal. Registration No. 42 Special Mixtures to Order Germain Seed & Plant Co., Los Angeles, Cal. Registration No. 76 Blood and Bone Nuvida Flower and Fern Nuvida Lawn and Garden Nuvida Vegetable Ba*^ Guano Bird Guano Blood Bone Meal Cotton Bolls Ash Cotton eed Meal Fish Meal Garbage Tankage Globe Grain & Milling Co., Los Angeles, Cal. Registration No. 83 Nitrate of Soda Packing House Tankage Sulphate of Ammonia Superphosphate Whale Blood Whale Bone Meal Special Mixtures High Grade Blood High Grade Tankage Low Grade Tankage Nitrate of Soda Hauser Packing Co., Los Angeles, Cal. Registration No. 33 Steamed Bone Meal Sulphate of Potash Special Mixtures to Order 204 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION Hawaiian Fertilizer Co., Ltd., San Francisco, Cal. Registration No. 19 Blood Bone Meal Delta No. 1 Double Manure Salts Fish Guano Fish Meal No. 1 Fish Meal No. 2 Fruit and Vine Fruiting Muriate of Potash Thomas Phosphate Vegetable Nitrate of Lime Nitrate of Soda Nursery Santa Clara Vegetable Special Fall Special Spring Sulphate of Ammonia Sulphate of Potash Superphosphate Tankage Whale Guano Special Mixtures Mococo Superphosphate 0-17-0 Nitrate of Soda Mountain Copper Co., San Francisco, Cal. Registration No. 28 Special Mixtures to Order Nitrate of Soda Nitrate Agencies Co., San Jose, Cal. Registration No. 97 Special" Oakland Meat & Packing Co., Emeryville, Cal. Registration No. 24 Pacific Bone Coal & Fertilizing Co., San Francisco, Cal. Registration No. 14 Blood Bone Meal (raw & steamed) Citrona Special Flora Special Nitrate of Soda Nursery Special No. 1 Nursery Special No. 2 Pomona Special Potash Salts Superphosphate Sulphate of Ammonia Tankage Special Formulas Bulletin 315 COMMERCIAL FERTILIZERS 205 Pacific Guano & Fertilizer Co., San Francisco, Cal. Registration No. 4 AA Cropmaker 6-9-2 Al Cropmaker 7-11-0 Cropmaker 4-10-1 Gaviota AJX Gaviota CJV Gaviota F & V Gaviota GG Gaviota HOP Gaviota IXL Gaviota N Gaviota OK Gaviota PNK Gaviota PP Gaviota S Gaviota Superphosphate Gaviota TRK Gaviota VGR Gaviota XLT Gromore Special Cropmaker Superphosphate Pacific Special Mixtures to Order Diamond Complete Diamond BG Lawn Diamond Bone Meal Diamond Fish Meal Pacific Wood & Coal Co., San Diego, Cal. Registration No. 53 Diamond Tankage Nitrate of Soda Superphosphate Tankage San Antonio Meat Co., Pomona, Cal. Registration No. 69 Southern California Fertilizer Co., Los Angeles, Cal. Registration No. 89 Banner Blood Bone Meal Fish Fruiting Garbage Tankage Guanos Nitrate of Soda Potash Reliable Sulphate of Ammonia Superphosphate Tankage Special Mixtures Bat Guano Bird Guano Blood United Guano & Fertilizer Co., Colton, Cal. Registration No. 94 Bone Meal Fish Tankage Tankage 206 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION Union Superphosphate Co., San Francisco, Cal. Registration No. 31 Superphosphate, Gaviota Superphosphate, Pacific Bat Guano Bird Guano Blood W. M. Warren Fertilizer Co., Covina, Cal. Registration No. 92 Bone Meal Tankage Mixed Fertilizer Wizard Western Fertilizer Co., San Francisco, Cal. Registration No. 68 Wonder Western Meat Co., San Francisco, Cal. Registration No. 11 Diamond A, B, C, D Diamond E Tankage Diamond F Raw Bone Diamond G Steamed Bone Diamond H Blood Diamond I Tankage Diamond K, L, M. Diamond O Berry Special Diamond S Fair Green Lemon Special Nitrate of Soda Odorless Lawn Dressing Putting Green Special 5-8-2 Special 6-8-2 Sulphate of Potash Superphosphate Superphosphate Idaho Brand Tankage Special Mixtures to Order Wilson & Company, Los Angeles, Cal. Registration No. 64 Blood & Bone Bone Meal High Grade Blood Eight & Eight Tankage Five & Fifteen Tankage Five & Five Tankage Flora Lawn Superphosphate Zenith Lawn Dressing Special Mixtures Bulletin 315 COMMERCIAL FERTILIZERS 207 REPORT OF ANALYSIS Available phosphoric acid is not determined in bone meal, tankage, and Thomas phosphate powder, unless requested. The fineness of these materials is determined, fine and medium bone being separated by a sieve of 50 meshes to the inch ; tankage by a 25-mesh sieve ; and Thomas phosphate powder by a 100-mesh sieve. Nitrogen in ammonium salts will, in some cases, be found reported when nitrogen in this form is not guaranteed. In some of such cases this form of nitrogen is produced by conversion of organic nitrogen during process of manufacture, and is not to be considered a deviation from guaranty of materials used. Guanos carry more or less nitrogen in nitrates and ammonium salts, and when any appreciable quan- tity of guano is used the manufacturer should take into account the fact that some nitrogen will show as nitrates and ammonium salts. The failure to take this into consideration may account for the appear- ance of these forms of nitrogen in some samples in which only organic nitrogen was guaranteed. The percentage of chlorin is given when it exceeds 0.50 per cent. It is a matter of only technical interest whether chlorin present is from muriate of potash, kainit, or from common salt that may be in some of the materials used. If a manufacturer uses sulfate of potash and a tankage with it containing a large amount of chlorin, from a practical standpoint he has changed the quality of his fertilizer just as much as if he had used muriate of potash instead of sulfate of potash. Chlorin from all other sources has the same effect as if from muriate of potash. However, if muriate of potash is found when sulfate is guaranteed, the fact will be published. The following abbreviations are used in the tables: Bat G = bat guano, Bl = blood, Bn = bone, Fs = fish, G = guano, H = hoof, Min. Phos = mineral phosphate. Super = superphosphates, T = tankage, GSM = cotton seed meal. Guarantees are entered in italics. Deficiencies greater than those allowed by law are entered in bold-faced type. 208 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION Name and Address of Manufacturer or Dealer, AND Name of Brand From Whom Obtained Lab. Value No. per ton Agricultural Chemical Works, Los Angeles, Cal. 7391 Bird Guano J. M. Webster, Upland 33.08 Guaranteed.... 34.23 7507* Bone Meal Union Commission Co., Santa Barbara, Cal 50.94 Guaranteed 50 .10 7375 Special H. P. Baumgartner, Los Angeles 56.88 7481 Special E. A. Moore, Redlands 56.70 Guaranteed 57 .60 7392 Special J. M. Webster, Upland 52.14 Guaranteed 52 .80 7393 Special J. M. Webster, Upland 29.46 Guaranteed - 30 .00 7394 Special J. M. Webster, Upland 40.02 7579 Special Anaheim Orange & Lemon Assn., Anaheim 40.08 Guaranteed 4^ .00 7395 Special J. M. Webster, Upland 45.12 7483 Special E. A. Moore, Redlands 49.98 Guaranteed 48 .00 7456 Special Garden Grove Lumber & Cement Co., Garden Grove. 37.96 Guaranteed 4^-80 7480 Special E. A. Moore, Redlands 54.72 Guaranteed 57 .60 7482 Special E. A. Moore, Redlands 45.30 Guaranteed 48 .00 7485 Special E. A. Moore, Redlands 37.92 Guaranteed 38 .4O 7484 Special Lawn E. A. Moore, Redlands 33.06 Guaranteed 30.00 American Agricultural Chemical Co., Los Angeles, Cal. 7386 Grain No. 1 G. L. Winterbotham, Riverside 32.76 Guaranteed 28 . 70 7502 Bradley Nursery Stock Santa Paula Cit. Fruit Assn., Santa Paula 45.86 Guaranteed 4^-60 7475 Bradley's Lemon Tree Pacific Wood & Coal Co., San Diego, Cal 43.26 Guaranteed 4^.<70 7476 Bradley's Superphosphate Pacific Wood & Coal Co., San Diego 21.41 Guaranteed 19 .20 7385 Tree and Vine G. L. Winterbotham, Riverside 38.34 Guaranteed 33.62 7387 Vegetable G. L. Winterbotham, Riverside 51 .96 Guaranteed 46 .60 7507*— 47% fine. Bulletin 315 COMMERCIAL FERTILIZERS 209 Phosphoric Acid A Nitrogen A Potash Lab. No. 7391 7507 7375 7481 7392 7393 7394 7579 7395 7483 7456 7480 7482 748^ 7484 Avail- In- able soluble Total 8.40 8.25 22.50 23.00 7.95 8.65 8.00 Guaranteed In Am- as derived In Ni- monia from trates Salts 1.37 9.50 8.85 9.00 10.00 10.00 10.70 0.50 10.00 10.00 10.00 11.15 10.00 4.66 1.33 3.71 Bn, Super, T J^.OO 5.02 0.36 Bn, Super, T 4.50 0.80 Bn, Super, T 1.00 5.32 2.58 7.90 9.00 8.45 8.00 10.80 10.00 12.95 12.00 11.15 10.00 2.40 3.18 Bn, Super, T 3.00 2.21 3.17 Bn, Super, T 3.00 1.97 Bn, Super, T 2.00 4.83 Bn, Super, T 5.00 2.99 Bn, Super, T 2.00 1.94 Bn, Super, T 2.00 1.03 Bn, Super, T 1 00 Or- ganic 1.91 3.37 3.99 3.75 1.90 4.01 4.00 1.54 2.50 2.11 2.00 2.13 1.50 2.00 3.31 2.93 3.00 1.61 2.00 2.60 3.00 2.40 4.00 1.79 2.00 2.25 2.00 Organic Nitrogen Guaranteed as derived from Bat, G, Bl, Bn, Fs Bat G, Bl, Bn Bat G, Bl, Bn Bat G, Bl, Bn, Fs Bat G, Bl, Bn, Fs Bat G, Bl, Bn, Fs Bat G, Bl, Bn Bat G, Bl, Bn, Fs Bat G, Bl, Bn, Fs Bat G, Bl, Bn, Fs Total 3.28 3.37 3.99 3.75 7.89 7.72 8.00 6.92 7.00 2.91 3.00 4.53 4.68 5.00 5,52 6.10 6.00 From Sul- fate Chlo- Total RiN 0.83 1.10 0.72 0.50 5 39 6.00 3.73 4.00 3.28 3.00 1.25 0.50 3.58 1.75 1.45 4.00 2.00 7.43 8.00 0.60 7386 7502 7475 7476 7385 7387 9.00 1.20 1.00 10.20 9.00 1.23 0.95 0.32 0.25 0.49 0.45 8.00 Bn, Super Bat G, Bl, Bn, T 9.38 1.40 1.00 10.75 10.00 2.49 2.35 0.88 0.75 0.97 1.00 9.00 Bn, Super Bat G, Bl, Bn, T 8.66 1.64 1.00 10.30 10.00 2.23 2.35 0.84 0.75 0.96 1.00 9.00 Bn, Super Bat G, Bl, Bn, T 17.84 1.56 1.26 1.00 19.40 10.10 9.00 1.39 1.26 0.47 0.31 0.91 0.90 16.00 8.84 8.00 Bn, Super Bat G, Bl, Bn, T 8.89 1.16 1.00 10.05 9.00 2.20 1.90 0.70 0.60 0.85 0.80 8.00 Bn, Super Bat G, Bl, Bn, T 2.04 2.07 .... 1 .65 2.00 4.34 1.73 .... .... 0.57 4.10 1.50 .... 4.03 1.68 .... 1.12 4.10 1.60 .... 2.77 2.40 .... 2.47 2.00 3.75 4.35 .... 3.30 4.00 .... 210 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION Name and Address of Manufacturer or Dealer, AND Name of Brand From Whom Obtained Lab. Value No. per ton Citrus Fertilizer Co., Los Angeles, Cal. 7490 Doty's Special Fruiting Walter Shearing, Redlands 35.62 Guaranteed 30 .40 7491 Doty's Special Nursery Walter Shearing, Redlands 39.40 Guaranteed 36 .70 Cudahy Packing Co., Los Angeles, Cal. 7397 Blood Pomona Fruit Growers Exchange, Pomona 83.89 Guaranteed 83 . 70 7494* Tankage W. M. Warren, Covina 61 .02 Guaranteed 60 .60 Fruit Growers Supply Co., Los Angeles, Cal. 7531 Bat Guano Mr. View Fruit Assn., Uplands 38.26 Guaranteed 37 .08 7464 Blood G. A. Hanson Fruit Co., Upland 77.19 Guaranteed 72.29 7396* Fish Tankage Pomona Fruit Growers Exch., Pomona 69.24 Guaranteed 68 .66 7445* Fish Tankage Santiago Orange Growers Assn., Orange, Cal 69.42 Guaranteed 68 .11 7501* Fish Tankage Fillmore Citrus Fruit Assn., Fillmore 72.02 Guaranteed 69 .34 7599* Fish Tankage H. D. French, et al. Riverside 70.56 Guaranteed 69 .95 7444* High Grade Tankage Santiago Orange Growers Assn., Orange, Cal 55.98 Guaranteed 56 .^7 7499* High Grade Tankage Citrus Fruit Assn., Ontario 59.22 Guaranteed 59 .09 7518* Tankage Citrus Fruit Assn., Ontario 60.24 Guaranteed 6^.73 7583* Tankage Miss I. Demens, Alto Loma 42.48 Guaranteed 36 .00 7589* Tankage L. C. Waite, Riverside 68.10 Guaranteed 64-80 General Fertilizer Assn., San Bernardino, Cal. 7535* Bone Meal E. O. Rickard, Riverside 46.02 Guaranteed 45-90 7553* Fish Meal W. F. Grow, Highland 67.80 Guaranteed 65 .74 7586* Fish Meal D. B. Lee, Ontario 71.52 Guaranteed 70 .81 7466 Orange & Lemon Special Mixt Factory at Ontario 29.88 Guaranteed 33.60 7439 Special J. Henry Reynolds, Redlands 33.42 Guaranteed 36 .00 7492 Special J. Henry Reynolds, Redlands 45.84 Guaranteed 48-60 7494*— 81% fine. 7444*— 55% fine. 7589*— 67% fine. 7396*— 63% fine. 7499*— 53% fine. 7535*— 58% fine. 7445*— 57% fine. 7518*— 74% fine. 7553*— 47% fine. 7501*— 65% fine. 7583*— 82% fine. 7586*— 52% fine. 7599*— 66% fine. Bulletin 315 COMMERCIAL FERTILIZERS 211 Phosphoric Acid A f Lab. No. 7490 Avail- able 6.53 In- soluble Total 1.32 7.85 7.00 Guaranteed as derived from Bn, Super, 7 7491 6.12 1.08 7.20 In Am- In Ni- monia Or- trates Salts ganic 2.36 1.12 1.75 1.25 G 2.52 1.68 Nitrogen A 6 . 00 Bn, G, Super 2 . 25 2.00 Organic Nitrogen Guaranteed as derived from Bn, G, T Bn, G, T 3.48 3.00 4.20 4.25 Potash A From Sul- Chlo- Total fate Total rin 1 . 33 1 . 20 1 .00 1.39 1.15 1.00 7397 7494 8.25 8.00 .. . 13 53 13 53 13.50 13.50 8.52 8.52 8.50 8.50 7531 5.10 5.32 7464 "" 7396 9.05 9.87 7445 9.90 11.16 7501 9.85 9.88 7599 7.10 8.19 7444 14.50 14-81 7499 13.50 13. S9 7518 7.40 7.44 7583 13.10 10.00 7589 8.20 8.t5 1.70 0.48 1.69 3.87 2.23 4.11 A. 11 1.51 12.45 12.45 11.66 11.66 9.73 9.73 9.47 9.47 9.59 9.59 9.12 9.12 9.70 9 70 . 9.58 9.58 10.34 10.34 10.02 10.02 6.43 6.43 6.45 6.45 7.17 7.17 7.17 7.17 8.56 8.56 9.30 9.30 4.46 4.46 4.00 4.00 9.71 9.71 9.17 9.17 7535 7553 7586 7466 7439 7492 28.00 2.40 1 75 ... 1.00 ... 2.85 ... 3.00 ... 2.07 2.25 9.47 9.23 10.28 10.21 1.55 2.25 3.63 3.00 2.22 2.35 2.07 27.00 2.25 9.15 9.47 8.63 9 23 8.20 10.28 7.96 10.21 5.15 3.95 8.00 9.70 Bn, G Bl, G 4.00 3.63 10.00 12.85 Bn, G Bl, Bn, G 4.00 5 07 13.75 Bn, G Bl, Bn, G 5.35 0.90 1 .00 0.57 212 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION Name and Address op Manufacturer or Dealer , AND Name of Brand From Whom Obtained Lab. Value No. per ton General Fertilizer Assn., (Continued) San Bernardino, Cal. 7536 Special S. H. Herrick, Riverside 39.66 Guaranteed 43-60 7590 Special J. Schermerhorn, Colton 45.64 Guaranteed 40 .00 7493 Special J. Henry Reynolds, Redlands 47.28 Guaranteed 48-00 7465 Special Factory at Ontario 40. 18 Guaranteed 40-00 7537 Special R. O. Sterns, Lindsay 36.96 Guaranteed 37.80 7538 Special R. O. Sterns, Lindsay 29.16 Guaranteed 30.00 7592* Tankage Charles Kalm, Colton 70.32 Guaranteed 63 .84 7585* Tankage Oro Vista Orange Co., Colton 56.46 Guaranteed 65 .20 Germain Seed & Plant Co., Los Angeles, Cal. 7510* Blood & Bone Warehouse at Los Angeles 30.48 Guaranteed 27 .60 7514* Bone Meal Warehouse at Los Angeles 52.50 Guaranteed 46 80 7511 Nuvida u Warehouse at Los Angeles 35.88 7512* Nuvida Warehouse at Los Angeles 37.92 Guaranteed 36 .00 7513 Nuvida Vegetable Warehouse at Los Angeles 45. 18 Guaranteed 36 .00 Hauscr Packing Co., Los Angeles, Cal. 7534 Blood Clarence Milligan, Rialto 70.31 Guaranteed 77 .50 7591 Blood H. D. Meyer, Pasadena 71.24 Guaranteed 68 .20 7447* Bone Meal W. B. Gemmill, Rialto 53.46 Guaranteed 46-80 7432 Special Mixture United Guano & Fert. Co., Colton 28.56 Guaranteed 34-80 7433 Special Mixture United Guano & Fert. Co., Colton 44.04 Guaranteed 40-00 7458 Special Mixture W. A. Shields, Mentone 61.14 Guaranteed 57 .60 7363* Tankage V. M. Greaver, Azusa 53.70 Guaranteed 55 .54 7596* Tankage G. A. Hanson Fruit Co., Upland 62.52 Guaranteed 39 .60 7597* Tankage G. A. Hanson Fruit Co., Upland 64.98 Guaranteed 57 .60 7.592*— 56% fine. 7585*— 75% fine. 7510* — Mislabeled — no blood or bone apparent, consists chiefly of super, fish and nitrate of soda. 7514*— 51% fine. 7512* — The 2% nitrogen in the nitric column are derived from cyanamid. 7447*— 33% fine. 7363*— 70 %fine. 7.596*— 68%, fine. 7.197*— 73% fine. Bulletin 315 COMMERCIAL FERTILIZERS 213 Phosphoric Acid Nitrogen _/^ Potash A Lab. No. 7536 7590 7493 7465 7537 7538 7592 7585 Avail- able In- soluble Total 7.00 8.00 9.70 10.00 9.85 10.00 10.60 10.00 9.40 9.00 9.80 10.00 10.95 11.20 15.20 16.00 Guaranteed as derived from Bn, , G Bn, , G Bn, . G G, T Bn, G Bn, G, T In Ni- trates In Am- monia Salts Or- ganic 1.50 .... .... 2.69 .... 5.00 1.37 0. 74 2.55 .... 5.91 .... 6.00 1.87 .... .... 2.04 1.50 .... 2.50 1.43 .... .... 2.85 1.50 .... .... 3.00 0.50 .... 2.40 .... 3.00 .... 9.53 8.40 .... 6.37 .... 6.00 Organic Nitrogen Guaranteed as derived from Bl, Bn, G Bl, Bn, G Bl, Bn, G Bl, Bn, G Bl, Bn, G Bl, Bn, G, T Total 4.19 5.00 4.66 4.00 5.91 6.00 3.91 4.00 4.28 4. 60 2.90 3.00 9.53 8.40 6.37 6.00 From Sul- fate Total Chlo- RIN 1.53 0.60 1.00 1.51 1.35 1.00 1.00 0.62 1.00 0.77 0.52 1.00 0.85 0.75 1.00 7510 7.04 2.36 9.40 3.00 5.00 8.00 7514 24.90 24.00 7511 9.50 2.50 12.00 7512 8.55 2.10 10.65 7.00 S.OO 10.00 7513 6.28 3.72 10.00 5.00 5.00 10.00 Bn 1.13 2.20 2.08 2.00 1.80 2.00 2.07 3.20 S.OO 3.77 Bl, Bn 3.00 3.77 3.00 3.00 1.88 4 08 2.11 4.19 2.00 3.73 Bl 4.00 5.53 2.00 Bl, Fs 4.00 \ 7534 23.90 24.00 8.90 11.50 11.15 10.00 9.20 8.00 10.30 9.55 9.55 8.00 7.95 8.00 7591 7447 7432 7433 Bn, T 7458 Bn, T 7363 Bn, T 7596 7397 0.60 11.34 12.50 11.49 11.00 4.13 3.00 2.38 3.50 4.31 4.00 3.75 4.00 6.89 7.18 8.51 5.00 9.24 8.00 11.34 12.50 11.49 11.00 4.13 3.00 2.98 3.50 4.31 4.00 8.35 8.00 6.89 7.18 8.51 5.00 9.24 8.00 1.20 1 .00 0.29 Bl, Bn, T 0.50 4.60 Bl, Bn, T 4.00 Bl, Bn, T 0.92 214 UNIVERSITY OF CALIFORNIA — EXPERIMENT STATION Name and Address of Manufacturer or Dealer, AND Name of Brand From Whom Obtained Lab. Value No. per ton Hauser Packing Co., (Continued) Los Angeles, Cal. 7428* Tankage United Guano & Fert. Co., Colton 48.00 Guaranteed 4^ .00 7532* Tankage Peppers, Tillotson & Whitney, Redlands 46.80 7533* Tankage Peppers, Tillotson & Whitney, Redlands 49.80 Guaranteed J^S .00 7522* Tankage A. W. Towne, Pomona 52.02 7528* Tankage A. W. Towne, Pomona 55.86 7577* Tankage Charles Menefee, Covina 57.60 Guaranteed 67 .60 7526* Tankage A. A. Reynolds, Redlands 49.08 7581* Tankage L. S. Taylor, San Dimas 50.82 Guaranteed 50 .^0 7429* Tankage United Guano & Fert. Co., Colton 43.56 Guaranteed 39.60 7430* Tankage United Guano & Fert. Co., Colton 53.34 Guaranteed 61 .60 7431* Tankage United Guano & Fert Co., Colton 52.92 Guaranteed 53 .04 7489* Tankage E. N. Nahmens, Redlands 51.36 Guaranteed 55 .50 7582* Tankage E. D. Barry, Los Angeles 65.10 Guaranteed 65 .36 7443 Special Big Gun W. B. Gemmill, Rialto 61.26 7527 Special Big Gun D. P. Stone, Redlands 67.86 Guaranteed 64-80 Hawaiian Fertilizer Co., Ltd., San Francisco, Cal. 7550* Bone Meal E. C. Small, Fresno 52.20 Guaranteed 4^-80 7551* Bone Meal E. C. Small, Fresno 50.04 Guaranteed 4^ .00 7548 Fruiting E. C. Small, Fresno 44.60 Guaranteed 39.60 7549 Special Fall E. C. Small, Fresno 30.72 Guaranteed 33.20 7563 Special Fall George D. Kelley & Son, Newcastle 30.62 Guaranteed 32.00 75.52 Sulphate of Ammonia E. C. Small, Fresno 123.72 Guaranteed 123.00 75.58 Superphosphate J. S. West, Modesto 22.27 Guaranteed 20 .40 7524* Tankage Fred Orth, Redlands 53.16 Guaranteed 45 .60 Mountain Copper Co., San Francisco, Cal. 7460 Superphosphate H. L. Haynes, Orange 21.65 7561 Superphosphate Oakdale Milling Co., Oakdale 21.38 Guaranteed : 21 .54 7560 Superphosphate The Grange Co., Modesto 21 .60 Guaranteed 21 . 78 7428*— 68% fine. 7526*— 75% fine. 7489*— 71% fine. 7532*— 73% fine. 7581*— 79% fine. 7582*— 69% fine. 7533*— 76% fine. 7429*— 66% fine. 7550*— 53% fine. 7.522*— 71% fine. 7930*— 73% fine. 7551*— 51% fine. 7528*— 72% fine. 7431*— 73% fine. 7524*— 60% fine. 7577*— 68% fine. Bulletin 315 COMMERCIAL FERTILIZERS 215 Phosphoric Acid Nitrogen Potash Lab. No. 7428 7532 7533 7522 7528 7577 7526 7581 7429 7430 7431 7489 7582 7443 7527 Avail- In- able soluble Total 9.75 10.00 9.70 10.00 10.00 7.90 8.65 9.30 8.00 10.95 12.60 12.00 8.80 8.00 12.05 13.00 9.25 8.70 9.25 8.75 6.70 5.72 5.65 5.00 4.00 Guaranteed as derived from In Ni- trates In Am- monia Salts 1.70 2.30 Or- ganic 6.05 6.00 5.86 6.30 6.00 7.09 7.58 7.74 8.00 5.99 5.95 6.00 5.50 5.00 6.48 6.00 6.97 7.10 6.71 7.50 9.51 9.75 7.33 8.01 Organic Nitrogen Guaranteed as derived from Total 6.05 6.00 5.86 6.30 6.00 7.09 7.58 7.74 8.00 5.99 5.95 6.00 5.50 5.00 6.48 6.00 6.97 7.10 6.71 7.60 9.51 9.75 9.08 10.31 10.00 From Sul- fate Total Chlo- RIN 7550 7.24 7.00 11.10 7.00 10.11 7.00 18.56 17.00 2.06 1.00 0.70 4.00 0.84 3.00 0.34 0.50 24.70 24.00 22.80 20.00 9.30 8.00 11.80 11.00 10.95 10.00 18.90 17.50 14.10 8.00 1 .83 .00 1.32 0.80 20.62 20.60 3.76 3.00 3.78 3.60 1.49 1.20 6.04 6.00 3.76 2.90 3.00 5.00 5.00 4.14 4.37 3.00 7551 3.78 3.50 7548 3.64 7549 Bn, , Super, T Bl,Bn,G,T 3.00 3.15 7563 3.60 7552 20.62 20 50 7558 7524 6.04 6.00 7460 18.04 0.36 18.40 7561 17.82 0.78 18.60 17.95 0.35 18.30 7560 18.00 0.50 18.50 18.15 0.'.^0 18.55 216 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION Name and Address of Manufacturer or Dealer, AND Name of Brand From Whom Obtained Lab. Value No. per ton Pacific Bone Coal & Fertilizing Co., San Francisco, Cal. 7593 Baird Special Curtis Ranch Co., Bloomington 70.81 7594 Baird Special Curtis Ranch Co., Bloomington 70o6 Guaranteed 67 .60 7565 Lupine Earl Fruit Co., Loomis 36.92 Guaranteed .'. 32.00 7523 Bone Meal & Sulphate of Am- monia Rialto Orange Co., Rialto 59.70 Guaranteed 57 .60 7545 Special Citrona Basil Pryor, Lindsay 42.64 7562 Special Citrona Valley Seed Co., Sacramento 43.58 Guaranteed 40 .00 7546 Special Citrus Basil Pryor, Lindsay 42.78 Guaranteed 4^ .00 7595 Special Nursery Stock George C. Roeding Co., Fresno 51.42 Guaranteed 4^ .60 7575 Special Pomona A. Dinkins, Woodlake 42.62 Guaranteed 36 .40 7371 Sulphate of Ammonia Wilson & Co., Riverside 114.60 Guaranteed 123.00 7576 Superphosphate A. Dinkins, Woodlake 22.30 Guaranteed 20 .40 7529* High Grade Tankage Serge N. Petrenko, Alto Loma 46.62 Guaranteed 48 .00 7570 Whitney Special No. 1 Whitney Estate, Rocklin 58.80 Guaranteed 56 .00 7571 Whitney Special No. 2 Whitney Estate, Rocklin 71 . 10 Guaranteed 68 .00 Pacific Guano & Fertilizer Co., San Francisco, Cal. 7389 Blood E. F. Wilson, Upland 82.21 Guaranteed 83 . 70 7398* Bone Meal E. F. Struve, Pomona 46.02 Guaranteed 4^-90 7437* Bone Meal R. E. Fairchild, Redlands 48.36 Guaranteed 48 60 7450* Bone Meal Harry Scott, Rialto 52.08 Guaranteed 49 .20 7468* Bone Meal Robert H. Winn, San Diego 47.74 Guaranteed : 46 .80 7469* Bone Meal Robert H. Winn, San Diego 55.62 Guaranteed 52 .50 7477* Bone Meal Harry Scott, Rialto 42.24 Guaranteed 46 .80 7509* Bone Meal G. A. Hanson Fruit Co., Upland 52.02 Guaranteed 46-80 7554* Bone Meal P. S. Turnbull, Fresno 54.66 Guaranteed 48-98 7580* Fish Mea! W. E. Briggs. Riverside 77.70 Guaranteed 57 .24 7544 Gaviota Special 4-10-1 Cropmaker D. Ostendorl, Lindsay 47.02 7379 Gaviota Special 4-10-1 Cropmaker Fj. F. Wilson, Upland 42.14 7.529*— 83% fine. 7468*— 76% fine. 7554*— 46% fine. 7398*— 78% fine. 7469*— 03% fine. 7580*— 46% fine. 7437*— .57% fine. 7477*— 98% fine. 74.50*— 58% fine. 7509*— 52% fine. Bulletin 315 COMMERCIAL FERTILIZERS 217 Phosphoric Acid A Nitrogen A Potash A Lab. No. 7593 Avail- able 9.92 9.00 8.64 5.85 8.00 6.48 8.00 10.43 9.00 8.78 8.00 18.58 17.00 In- soluble 1.68 1.00 2.06 4.20 2.00 3.92 2.00 2.12 1.00 2.52 4.00 0.42 Total 11.41 11.45 8.00 11.60 10.00 18.80 18.00 10.70 10.05 10.00 10.40 10.00 12.55 10.00 11.30 12.00 19.00 14.85 15.00 10.25 10.00 11.45 10.00 Guaranteed as derived from r In Ni- trates 1.71 1.21 1.00 0.98 1.00 2.31 2.35 1.97 1.00 1.11 1.00 1.55 1.50 In Am- monia Salts 4.73 4.74 4.00 3.50 3.50 1.05 1.29 1.00 2.35 2.00 1.09 0.75 19.10 20.50 1.03 1.00 1.58 1 .50 Or- ganic 4.79 4.73 4.00 2.69 2.50 1.24 1.58 2.00 1.72 2.00 1.40 1.00 2.08 2.00 4.80 5.00 2.67 2.00 2.99 3.00 Organic Nitrogen Guaranteed as derived from Total 9.52 9.47 8.00 6.19 6.00 4.00 4.08 4.00 5.05 5.00 4.80 4.10 4.05 S.OO 19 10 20.50 4.80 5.00 4.81 4.00 6.12 6.00 From Sul- fate 1.45 1.76 2.00 1.89 1 .50 1.19 J'. 00 5.00 5.00 Total 7594 7565 T T 5.75 Bn, G, Super 5 .00 7523 7545 Bn Bn 7562 7546 Bn, Super Bl, Bn 7595 Bn, Super Bl, Bn, T 7575 Bn, Super Bl, Bn, T 7371 Bn, Super BL, Bn, T 7576 7529 7570 4.41 7571 Bn Bl, Bn, T 5.16 Bn BL Bn, T Chlo- RIN 2.10 0.87 0.60 0.67 2.50 2.65 7398 29.30 27.50 7437 21.30 22.00 7450 27.00 26.00 7468 27.90 26.50 7469 18.20 17.50 7477 26.40 29.00 7509 24.60 24.00 7554 17.50 16.32 7580 6.10 7.70 7544 9.75 7379 10.00 13 13. 1 1 3 3 3 3 2 2. 5. 6 1 2. 3 3 5 4 11 8 2 2 .26 13 .26 .50 .81 .65 .80 .70 ,28 .00 .... .71 .50 .63 .... .25 ,76 .00 .75 .00 ,61 .90 .73 .00 .78 .25 .... .50 IS .81 1 .65 1 .80 3 .70 3. .28 3, .00 3 .71 2 50 2. 63 5 ,... 1.66 1.16 .25 5 .76 1 .00 2. .75 3 .00 3. .61 5, .90 4 .73 11 .00 8. 2.74 .04 4 0.52 1.26 ... .99 4 0.70 218 UNIVERSITY OF CALIFORNIA — EXPERIMENT STATION Name and Address op Manufacturer or Dealer, AND Name of Brand From Whom Obtained Lab. Value No. per ton Pacific Guano & Fertilizer Co., (Continued) San Francisco, Cal. 7376 Gaviota Special 4-10-1 ' Cropmaker E. F. Wilson, Upland 43.24 7.525 Gaviota Special 4-10-1 Cropmaker W. H. Wyckoff, Redlands 44.52 Guaranteed J^O .00 7377 Gaviota Special E. F. Wilson, Upland 43.00 7434 Gaviota Special R. E. Fairchild, Redlands 44.34 Guaranteed 4^ .80 7378 Gaviota Special E. F. Wilson, Upland 28.50 Guaranteed 31 .60 7388 Gaviota Special E. F. Wilson, Upland 40.58 Guaranteed J+0 .00 7435 Gaviota Special R. E. Fairchild. Redlands 56.12 Guaranteed 53 .60 7448 Gaviota Special Harry Scott, Rialto 30.60 Guaranteed 30.00 7452 Gaviota Special Harry Scott, Rialto 31 .92 Guaranteed 33.00 7454 Gaviota Special Harry Scott, Rialto 57.08 7542 Gaviota Special D. Ostendorf, Lindsay 58.00 Guaranteed 64-80 7455 Gaviota Special Harry Scott, Rialto 33.88 Guaranteed 31 .80 7479 Gaviota Special Harry Scott, Rialto 56.22 Guaranteed 54-84 7500 Gaviota Special Mrs. M. H. MacDonald, Glendora 45.00 7564 Gaviota Special Pioneer Fruit Co., Newcastle 41.08 Guaranteed 4^.50 7519 Gaviota Special Pomona Fruit Growers Exchange, Pomona 54.60 Guaranteed 55 .20 7539 Gaviota Special D. Ostendorf, Lindsay 41 .66 7540 Gaviota Special D. Ostendorf, Lindsay 39.36 Guaranteed 39.00 7470 Gromore Sixth St. Seed Store, San Diego 61.00 7574 Gromore Wilkes-Pearson-Knutsen Co., Stockton 66.70 Guaranteed 66 .80 7380 Guano W. T. Henderson, Riverside 86.07 Guaranteed 88.20 7578 Bat Guano J. W. Cullen, Glendora 102.10 Guaranteed 103.88 7438 Nitrate of Soda R. E. Fairchild, Redlands 93.36 7547 Nitrate of Soda D. Ostendorf, Lindsay 92.40 Guaranteed 90 .00 7384 Special W. T. Henderson, Riverside 34.90 Guaranteed 34 -00 Bulletin 315 COMMERCIAL FERTILIZERS 219 Phosphoric Acid Nitrogen A Pot./ A i.8H r Lab. No. 7376 Avail- able 5.67 5.21 8.99 5.40 7.50 13.83 13.50 6.73 8.00 8.11 8.66 9.13 In- soluble 4.78 1.74 0.76 2.90 2.40 1.02 0.50 2.72 2.30 2.14 1.14 1.12 Total 10.45 9.95 10.00 9.40 9.75 9.00 5.35 6.25 9.65 10.00 8.30 8.00 11.05 10.00 6.25 6.25 9.90 8.85 9.00 14.85 14-00 10.65 10.70 9.45 9.80 9.00 10.85 11 .00 10.30 10.25 10.00 9.80 10.25 9.00 6.30 6.00 3.85 3.27 9.20^ 8.75 ^ Guaranteed as derived from r In Ni- trates 0.50 1.00 2.85 0.72 3.00 2.05 2.00 1.90 2.00 1.96 1.50 2.80 2.08 2.00 1.20 1.00 2.08 2.00 1.17 2.83 2.03 2.00 0.71 0.95 0.50 5.14 5.98 6.00 15.56 15.40 15.00 In Am- monia Salts 0.25 1.28 1.20 0.93 1.00 .Or- ganic 3.62 3.21 3.00 0.91 3.24 1.00 3.68 4.00 2.03 2.00 2.40 2.00 0.93 1.50 4.07 4.25 3.14 3.95 4.00 0.47 0.50 5.16 5.00 1.98 0.61 4.00 4.90 5.00 2.02 1.70 2.00 8.66 10.30 14.18 15.40 1.09 0.75 Organic Nitrogen Guaranteed as derived from Total 4.37 4.49 4.00 3.76 3.96 4.00 3.68 4.00 4.08 4.00 4.30 4.00 2.89 3.00 4.07 4.25 5.94 6.03 6.00 1.67 1.50 7.24 7.00 4.35 3.44 4.00 6.93 7.00 2.73 2.65 2.50 5.14 5.98 6.00 9.59 10.30 15.18 15.40 15.56 15.40 15.00 1.09 0.75 r From Sul- fate 1.12 2.29 2.22 2.00 5.09 5.00 2.39 1.51 1.50 4.60 4.63 5.00 4.33 4.75 Total 1.41 1.00 0.74 1.00 1.13 1.00 0.99 0.50 0.73 1.00 2.80 2.00 1.89 2.17 2.00 3.23 2.79 3.00 5.01 4.80 1.60 1.89 Chlo- RIN 60 7525 0.62 7377 Bn, G, Super Bl, Bn, Fs, G, T 67 7434 72 7378 Super Bl, Bn, G, T 1.37 7388 Bn, G, Super Bl, Bn, Fs, G, T 7435 Bn, G, Super Bl, Bn, Fs, G, T 82 7448 Bn, G, Super Bl, Bn, Fs, G, T 80 7452 Bn, G, Super Bl, Bn, Fs, G, T 1.06 7454 Bn, G, Super Bl, Bn, Fs, G, T 1 10 7542 0.95 7455 Bn, G, Super Bl, Bn, Fs, G, T 55 7479 Bat G, Super BatG 7500 Bn, G, Super Bl, Bn, Fs, G, T 1 15 7564 1.57 7519 Bn, G, Super Bl, Bn, Fs, G, T 7539 Bn, G, Super Bl, Bn, Fs, G, T 1 82 7540 0.80 7470 Bn, G, Super Bl, Bn, Fs, G, T 55 7574 67 Super 7380 7578 G G 7438 Bat G BatG 7547 7384 1.10 Bn, Super Bn, T 220 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION Name and Address of Manufacturer or Dealer, AND Name op Brand From Whom Obtained Lab. Value No. per ton Pacific Guano & Fertilizer Co., (Continued) San Francisco, Cal. 7453 Special Harry Scott, Rialto 54.14 Guaranteed 49-00 7467 Special R. H. Winn, San Diego 41.10 Guaranteed 39.60 7451 Special 4-10-1 Harry Scott, Rialto 38.86 Guaranteed 40 .00 7381 Sulphate of Ammonia W. T. Henderson, Riverside 145.32 Guaranteed 143 .50 7382 Ga\dota Superphosphate W. T. Henderson, Riverside 22.10 Guaranteed 20 .4O 7436 Gaviota Superphosphate R. E. Fairchild, Rediands 23.09 7555 Gaviota Superphosphate P. S. TurnbuU, Fresno 23.42 7559 Gaviota Superphosphate Stanislaus County Farmers Union, Modesto 23.64 Guaranteed 21 .60 7390* Tankage E. F. Wilson, Upland 54.24 Guaranteed , 54-60 7449* Tankage Harry Scott, Rialto 54.00 Guaranteed 48-60 7543* Tankage D. Ostendorf, Lindsay 48. 60 Guaranteed 48-18 7600* Elmer Haywood, Orange 69.24 Guaranteed 61 .84 7383 Temporary F & V W. T. Henderson, Riverside 47.58 Guaranteed 4'^ -00 7478 Temporary PNK Harry Scott, Rialto 46.44 Guaranteed 45-20 Rogers, Brown & Co., Los Angeles, Cal. 7497* Bone Meal H. L. Hostetler, Covina 46.38 Guaranteed 44-40 7418* Fish Tankage J. Henry Reynolds, Rediands 62.58 Guaranteed 63 .91 7419* Fish Tankage J. Henry Reynolds, Rediands 72.42 Guaranteed 71 .04 7420* Fish Tankage J. Henry Reynolds, Rediands 35.70 Guaranteed 33.00 7495* Fish Tankage W. M. Warren, Covina 67.68 Guaranteed 64.92 7496* Fish Tankage W. M. Warren, Covina 65.34 Guaranteed 63.24 7423* Tankage J. Henry Reynolds, Rediands 54.78 Guaranteed 54 -00 7390*— 66% fine. 7449*— 81% fine. 7543*— 82% fine. 7600* — 73% fine. Contains hoof. No brand name, in violation of California Fertilizer Act. 7497*— 59% fine. 7418*— 74%, fine. 7419*— 51%, fine. 7420*— 54% fine. 7495*— 81% fine. 7496*— 65% fine. 7423* — Mixed fertilizer, mi.'jlabeled tankage. Bulletin 315 COMMERCIAL FERTILIZERS 221 Phosphoric Acid A Nitrogen A Potash A Lab. No. 7453 7467 7451 7381 7382 7436 7555 7559 7390 7449 7543 7600 7383 7478 Avail able In- soluble Total 10.01 1.74 11.75 10.00 11.65 10.50 5.18 10.75 2.00 10.00 5.57 8.00 18.42 17.00 19.24 19.52 19.70 18.00 7497 7418 7419 7420 7495 7496 7423 0.28 1.00 0.26 0.28 1.50 1.00 18.70 18.00 19.50 19.80 21.20 19.00 9.60 9.25 16.00 13.75 22.00 22.30 8.85 10.53 10.30 10.00 11.90 11.00 27.70 27.00 8.75 10.16 8.65 9.20 6.50 6.25 8.80 9.50 10.35 10.20 9.45 10.00 Guaranteed In Am- as derived In Ni- monia from trates Salts Bn, G, Super Bn, Super Bn, G, Super 1.62 1.00 Bn,G, Super 0.50 Bn, G, Super 5.67 0.94 1.00 Or- ganic 2.61 3.00 1.36 3.16 1.50 3.00 1.24 1 .30 1.10 1.50 1 .50 1.00 20 .76 20 .50 7.12 7.25 5.80 5.35 3.70 3.57 9.77 8.20 0.73 2.08 0.50 2.00 2.10 2.00 Organic Nitrogen Guaranteed as derived from Bl, Bn, Fs, G, T Bn, T Bl, Bn, G, T Bl, Bn, Fs, G, T 2.00 2.19 Bl, Bn, Fs, G, T 2.00 2.19 2.00 2.00 8.68 8.68 8.62 8.62 10.34 10.34 10.00 10.00 4 65 4.65 A. 25 4.25 9.52 9.52 8.92 8.92 8.82 8.82 8.50 8.50 From Sul- Chlo- Total fate Total RIN 5.17 2.02 0.75 5.00 1.50 4.52 0.71 0.82 4.50 0.50 3.64 1.03 0.65 4.00 1.00 20.76 20.50 7.12 7.25 5.80 5.35 3.70 3.57 9.77 8.20 2.81 4.59 0.70 2.50 5.00 2.10 4.89 0.97 2.00 5.00 0.84 0.80 Fs 1.57 7.00 Fs 7.24 7.00 222 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION Name and Address of Manufacturer or Dealer, AND Name of Brand From Whom Obtained Lab. Value No. per ton Southern California Fertilizer Co., Los Angeles, Cal. 7463 Bat Guano G. A. Hanson Fruit Co., Upland 94.14 Guaranteed 98.63 7487* Bone Meal W. F. Tyler, San Barnardino 51.66 Guaranteed ^5 .90 7488* Garbage Tankage W. F. Tyler, San Bernardino 7520* Garbage Tankage T. W. Frye, Highland 7521* Garbage Tankage J. D. Boley, Highland Guaranteed Western Fertilizer Co., San Francisco, Cal. 7572 Wonder Walt Mason, Stockton 68.82 Guaranteed 66 .80 7573 Wizard Stockton Seed Co., Stockton 68.36 Guaranteed 66 .80 Western Meat Company, San Francisco, Cal. 7457 Blood B. L. Byer, Upland 79.36 7486 Blood R. W. Hamlin, Glendora 82.46 Guaranteed 83 . 70 7409* Bone Meal B. L. Byer, Upland 49.08 Guaranteed 49-14 7402* Bone Meal G E. L. Koethen, Riverside 44.64 Guaranteed 44-40 7442* Bone Meal, Diamond G J. Henry Reynolds, Redlands 46.68 Guaranteed 4^-90 7566* Raw Bone Meal, Diamond F L. B. Guill, Chico 52.98 Guaranteed 48 .00 7401 D E. L. Koethen, Riverside 41.84 Guaranteed 44 -00 7426* Diamond I J. Henry Reynolds, Redlands 50.28 Guaranteed 48-60 744C Diamond M N. E. Walker, Nuero 43.72 7556 Diamond M Knutsen Bros., Turlock 48.66 Guaranteed 4^-40 7568 Diamond O Sebastopol Berry Growers, Sebastopol 49.26 Guaranteed 47-00 7373 Lemon Special B. L. Byer, Upland 50.64 7.503 Lemon Special Johnston Fruit Co., Santa Barbara 48.94 Guaranteed 4^-60 7567 Nitrate of Soda Sebastopol Berry Growers, Sebastopol 93.60 Guaranteed 90.00 7399* Special B. L. Byer, Upland 50.34 Guaranteed 50 .24 7400* Special B. L. Byer, Upland 51.84 Guaranteed 51 .90 7487*— 68% fine. 7409*— 76% fine. 7426*— 83% fine. 7488*— 52% fine. 7402*— 65% fine. 7399*— 71%, fine. 7.520*— 46% fine. 7442*— 76%o fine. 7400*— 69%, fine. 7521*— 43% fine. 7566*— 68% fine. Bulletin 315 COMMERCIAL FERTILIZERS 223 Phosphoric Acid Nitrogen A Potash A f Lab. No. 7463 Avail- able In- soluble Total 6.80 6.99 24.60 22.00 3.35 3.75 3.00 2.25 Guaranteed as derived from In Am- In Ni- monia trates Salts 1.40 Or- ganic 10.85 12.88 3.69 3.25 3.04 3.02 2.98 2.75 Organic Nitrogen Guaranteed as derived from Total 12.25 12.88 3.69 3.25 3.04 3.02 2.98 2.75 f From Sul- fate Total 3.12 3.24 1.37 1.33 1.26 1 .25 Chi.o- RIN 7487 '7488 1.30 7520 1.82 7521 1.45 7572 6.76 10.05 2.94 1.20 9.70 9.00 11.25 9.00 6.02 7573 Super 6.00 5.97 Super 6.00 6.02 6.00 5.97 6.00 5.14 0.55 5.00 4.76 0.75 5.00 7457 4 8 6 6 8 7 . 8 7. 7. 8. .63 .00 .15 ,17 00 71 00 05 51 .00 4 2 3 3 1 2. 2 2. 2 2 .92 .00 .10 ,08 .50 ,44 .00 50 ,34 .00 26.80 26.70 31.70 27.00 23.80 27.00 22.90 20.00 9.55 10.00 13.90 13.75 9.25 9.25 9.50 10.15 10.00 9.55 9.85 10.00 27.20 27.62 27.90 27.55 1.00 0.94 0.80 1.00 1.01 1 06 2.35 15.60 15.00 1.44 1.29 0.75 12.80 13.30 13.50 2.82 2.85 1.10 2.00 2.02 1.75 4.25 4.00 4.03 3.00 5.60 5.35 2.03 2.86 2.00 2.78 2.50 2.28 2.17 1.00 2.95 2.85 3.06 3.14 12.80 13 . 30 13.50 2.82 2.85 1.10 2.00 2.02 1.75 4.25 4.00 4.03 4.00 5.60 5.35 2.97 3.66 3.00 2.78 2.50 4.73 4.52 4.10 15.60 15.00 2.95 2.85 3,06 3.14 1.55 .... 2.00 .... 3.70 .... 3.90 .... 3.50 .... 5.10 5.00 .... 2.70 .... 2.50 .... 1.50 7486 7409 7402 7442 7556 7401 1.05 7426 Bn, Super Animal Matter 7446 T T 1.10 7556 0.80 7568 Bn, Super Animal Matter 1.50 7373 Bn, Super Animal- Matter 1.20 7503 1.25 7567 Bn. . Super Animal Matter 7399 7400 Bn Animal Matter Animal Matter 224 UNIVERSITY OF CALIFORNIA— EXPERIMENT STATION Name and Address of Manufacturer or Dealer, AND Name of Brand From Whom Obtained Lab Value No. per ton Western Meat Company, (Continued) San Francisco, Cal. 7425* Special J. Henry Reynolds, Redlands '. 50,88 Guaranteed 49 .20 7424 Special J. Henry Reynolds, Redlands 43.50 Guaranteed 40 00 7374 Special B. L. Byer, Upland 54.12 Guaranteed 53 .60 7462 Sulphate of Ammonia B. L. Byer, Upland 125. 16 Guaranteed 123.00 7403 Superphosphate E. L. Koethen, Riverside 21.89 7557 Superphosphate Knutsen Bros., Turlock 21 . 17 Guaranteed 21 .60 7427* Tankage J. Henry Reynolds, Redlands 49.80 Guaranteed 4^ .60 7440* Tankage J. Henry Reynolds, Redlands 58.20 Guaranteed 54-00 7461* Tankage B. L. Byer, Upland 49.80 Guaranteed 63 .40 7504* Tankage Johnston Fruit Co., Santa Barbara 57.72 Guaranteed 57 .60 7588* Tankage L. C. Waite, Riverside 66.66 Guaranteed 56 .70 7441* Tankage, Diamond E J. Henry Reynolds, Redlands 52.86 7569* Tankage, Diamond E Sebastopol Berry Growers, Sebastopol 54.66 Guaranteed 51 .60 Wilson & Company, Los Angeles, Cal. 7417* Blood Wilson & Co., Riverside 61.44 Guaranteed 72.00 7587 Blood Chas. E. Paige, Covina 86.12 Guaranteed 80 .35 7416* Bone Meal Wilson & Co., Riverside 51 . 18 Guaranteed 43 .80 7410* Fish Meal Wilson & Co., Riverside 66.42 Guaranteed 67 .20 7411* Fish Meal Wilson & Co., Riverside 61 .32 Guaranteed 58 .80 7405 Flora Lawn Wilson & Co., Riverside 39.42 Guaranteed 37 .00 7412 Potato Special Wilson & Co., Riverside 33.24 7505 Potato Special Union Commission Co., Santa Barbara 36.06 Guaranteed 36 .72 7425*— 69% fine. 7427*— 71% fine. 7440*— 06% fine. 7461*— 84% fine. 7504*— 69% fine. 7588*— 74% fine. 7441*— S4% fine. 7569*— 76% fine. 7417* — .Mislabeled, evidently tankage. 7416*— .55% fine. 7410*— 72% fine. 7411*— 64% fine. Bulletin 315 COMMERCIAL FERTILIZERS 225 Phosphoric Acid A Nitrogen A Potash A Ch: R] 2. 2, f Lab. No. 7425 Avail- able 18.24 17.64 2.80 In- soluble 0.16 0.56 3.20 Total 26.60 27.80 9.15 10.00 7.85 8.00 18.40 18.20 18.00 12.95 13.75 9.20 10.00 11.55 12.00 8.25 8.00 S.80 9.05 17.10 17.30 18.00 3.95 24.60 24.00 8.20 8.50 9.25 9.00 6.00 5.00 10.00 10.55 10.00 Guaranteed as derived from In Ni- trates 4.01 In Am- monia Salts 20.86 20.50 Or- ganic 3.16 2.64 4.56 4.00 5.85 6.00 5.71 5.35 7.86 7.00 5.99 6.50 7.97 8.00 9.35 7.64 5.39 5.65 5.00 9.45 12.00 13.89 12.96 3.61 2.50 9.43 9.50 8.37 8.00 4.00 1.90 2.22 2.12 Organic Nitrogen Guaranteed as derived from Total 3.16 2.64 4.56 4.00 5.85 6.00 20.86 20.50 5.71 5.35 7.86 7.00 5.99 6.50 7.97 8.00 9.35 7.64 5.39 5.65 5.00 9.45 12.00 13.89 12.96 3.61 2.50 9.43 9.50 8.37 8.00 4.01 4.00 1.90 2.22 2.12 r From Sul- fate 1.00 2.00 Total 1.29 2.40 2.04 1.75 2.46 2.52 3.00 LO- [N Animal Matter 7424 95 7374 Bn, Super Animal Matter 30 7462 Bn, Super Animal Matter 7403 7557 7427 7440 7461 7504 7588 7441 7569 7417 T T 7587 7416 Bn 7410 7411 7405 7412 Bn, G, Super Bl, Bn, G, T 97 7505 BatG,Bn,Fs, CSM, Goat, Super, T BatG,Bl,Bn, CSM, Goat, Fs, T 226 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION Name and Address of Manufacturer or Dealer, AND Name of Brand From Whom Obtained Lab. , Value No. per ton Wilson & Company, (Continued) Los Angeles, Cal. 7372 Red " W" Wilson & Co., Riverside 62.82 Guaranteed 64-80 7474 Superphosphate Wilson & Co., San Diego 21 .67 Guaranteed 21 .60 7415 Wilsco Superphosphate Wilson & Co., Riverside 22.61 Guaranteed 22.80 7506* Tankage Union Commission Co., Santa Barbara 57.60 7472* Tankage Wilson & Co., San Diego 56.46 Guaranteed 57 .60 7508* Tankage Union Commission Co., Santa Barbara 46.56 Guaranteed 47-40 7404 Wilsco Alfalfa Grower Wilson & Co., Riverside 12.90 Guaranteed 12 .00 7413 Wilsco Truckers Special Wilson & Co., Riverside 40.92 Guaranteed 4^-00 7414 Wilsco Vegetable Grower Wilson & Co., Riverside 29.16 Guaranteed 27 .12 7471 Wilsco Vegetable Grower Wilson & Co., San Diego 27.96 Guaranteed 24-00 7406 Zenith Lawn Dressing Wilson & Co., Riverside 37.10 Guaranteed 28.72 7506*— 75% fine. 7472*— 63% fine. 7508*— 73% fine. NOTE. — See page 207 for text referring to table of analj'sis. Bulletin 315 COMMERCIAL FERTILIZERS 227 Phospuoric Acid Nitrogen A Potash A Lab. No. 7372 Avail- able 18.06 18.84 2.95 In- soluble 0.24 0.26 7.80 Total 4.85 4.00 18.30 18.00 19.10 19.00 7.70 8.15 8.00 9.10 9.50 10.75 10.00 9.85 10.00 10.10 12.00 10.80 10.00 10.95 10.00 Guaranteed as derived from r In Ni- trates 6.60 2.16 0,54 0.89 In Am- monia Salts Or- ganic 2.90 8.06 7.78 8.00 5.94 6.00 2.69 5.00 2.84 2.12 1.96 2.00 2.01 2.12 Organic Nitrogen Guaranteed as derived from Total 9.50 10.00 8.06 7.78 8.00 5.94 6.00 4.85 5.00 2.84 2.12 2.50 2.00 2.90 2.12 From Sul- fate Total 0.63 1.00 1.16 0.25 0.78 1.00 1.94 0.50 1.64 1.00 Chlo- RIN 7474 7415 7506 7472 7508 7404 0.83 BatG,Bn,Fs, CSM,GoatG, Super, T 7413 0.70 7414 BatG,Bn,Fs, CSM,GoatG, Super, T BatG,Bl,Bn, CSM, Fs, Goat G, T 0.60 7471 BatG,Bn,Fs, CSM,GoatG, Super, T BatG,Bl,Bn, CSM, Fs, Goat G, T 82 7406 BatG,Bn,Fs, CSM,GoatG, Super, T BatG,Bl,Bn, CSM, Fs, Goat G, T BatG,Bn,Fs, CSM,GoatG, Super, T BatG,Bl,Bn, CSM, Fs, Goat G, T STATION PUBLICATIONS AVAILABLE FOR FREE DISTRIBUTION No. 168. 169. 174. 185. 208. 216. 230. 242. 250. 251. 252. 253. 255. 257. 261. 262. 263. 264. 266. 267. 268. 270. 271. 272. 273. 274. 275. 276. 277. 278. 279. No. 50. 65. 69. 70. 76. 82. 87. 107. 109. 110. 111. 113. 114. 115. 117. 124. 126. 127. 128. 129. 130. 131. Observations on Some Vine Diseases in Sonoma County. Tolerance of the Sugar Beet for Alkali. A New Wine Cooling Machine. Report of Progress in Cereal Investi- gations. The Late Blight of Celery. A Progress Report upon Soil and Cli- matic Factors Influencing the Com- position of Wheat. Enological Investigations. Humus in California Soils. The Loquat. Utilization of the Nitrogen and Organi Matter in Septic and Imhoff Tank Sludges. Deterioration of Lumber. Irrigation and Soil Conditions in the Sierra Nevada Foothills, California. The Citricola Scale. New Dosage Tables. Melaxuma of the Walnut, "Juglans regia." Citrus Diseases of Florida and Cuba Compared with Those of California. Size Grades for Ripe Olives. The Calibration of the Leakage Meter. A Spotting of Citrus Fruits Due to the Action of Oil Liberated from the Rind. Experiments with Stocks for Citrus. Growing and Grafting Olive Seedlings. A Comparison of Annual Cropping, Bi- ennial Cropping, and Green Manures on the Yield of Wheat. Feeding Dairy Calves in California. Commercial Fertilizers. Preliminary Report on Kearney Vine- yard Experimental Drain. The Common Honey Bee as an Agent in Prune Pollination. The Cultivation of Belladonna in Cali- fornia. The Pomegranate. Sudan Grass. Grain Sorghums. Irrigation of Rice in California. BULLETINS No. 280. 281. 282. 283. 284. 285. 286. 288. 290. 292. 293 296. 297. 298. 299. 300. 301. 302. 303. 304. 305. 306. 307. 308. 309. 310. 311. 312. 313. 314. 315. 316. Fumigation Scheduling. The California Insecticide Law. The Extermination of Morning-Glory. Observations on the Status of Corn Growing in California. Hot Room Callusing. The Common Ground Squirrels of California. Alfalfa. Spraying Walnut Trees for Blight and Aphis Control. Community or Local Extension Work by the High School Agricultural De- partment. Green Manuring in California. The Use of Lime and Gypsum on Cali- fornia Soils. Correspondence Courses in Agriculture. Increasing the Duty of Water. Grafting Vinifera Vineyards. The Selection and Cost of a Small Pumping Plant. Alfalfa Silage for Fattening Steers. Spraying for the Grape Leaf Hopper. House Fumigation. Insecticide Formulas. The Control of Citrus Insects. Cabbage Growing in California. Spraying for Control of Walnut Aphis. CIRCULARS No. 133. 135. 136. 137. 138. 139. 140. 142. 143. 144. 147. 148. 151. 152. 153. 154. 155. 156. 157. 158. Irrigation of Alfalfa in the Sacramento Valley. Control of the Pocket Gopher in Cali- fornia. Trials with California Silage Crops for Dairy Cows. The Olive Insects of California. Irrigation of Alfalfa in Imperial Valley. The Milch Goat in California. Commercial Fertilizers. Potash from Tule and the Fertilizer Value of Certain Marsh Plants. The June Drop of Washington Navel Oranges. Green Manure Crops in Southern Cali- fornia. Sweet Sorghums for Forage. Topping and Pinching Vines. The Almond in California. Seedless Raisin Grapes. The Use of Lumber on California Farms. Commercial Fertilizers. California State Dairy Cow Competi- tion, 1916-18. Control of Ground Squirrels by the Fumigation Method. Grape Syrup. A Study on the Ei¥ects of Freezes on Citrus in California. The Influence of Barley on the Milk Secretion of Cows. Almond Pollination. Pollination of the Bartlett Pear. I. Fumigation with Liquid Hydrocianic Acid. II. Physical and Chemical Properties of Liquid Hydrocianic Acid. I. The Carob in California. II. Nutri- tive Value of the Carob Bean. Plum Pollination. Investigations with Milking Machines. Mariout Barley. Pruning Young Deciduous Fruit Trees. Cow-Testing Associations in California. Commercial Fertilizers. The Kaki or Oriental Persimmon. County Farm Adviser. Official Tests of Dairy Cows. Melilotus Indica. Wood Decay in Orchard Trees. The Silo in California Agriculture. The Generation of Hydrocyanic Acid Gas in Fumigation by Portable Machines. The Practical Application of Improved Methods of Fermentation in Califor- nia Wineries during 1913 and 1914. Practical and Inexpensive Poultry Appliances. Control of Grasshoppers in Imperial Valley. Oidium or Powdery Mildew of the Vine. Tomato Growing in California. "Lungworms". Feeding and Management of Hogs. Some Observations on the Bulk Hand- ling of Grain in California. Announcement of the California State Dairy Cow Competition, 1916-18. Irrigation Practice in Growing Small Fruits in California. Bovine Tuberculosis. How to Operate an Incubator, Control of the Pear Scab. Home and Farm Canning. CIRCULARS — Continued No. 160. Lettuce Growing in California. 162. White Diarrhoea and Coccidiosis of Chicks. 164. Small Fruit Culture in California. 165. Fundamentals of Sugar Beet Culture under California Conditions. 166. The County Farm Bureau. 167. Feeding Stuffs of Minor Importance. 168. Spraying for the Control of Wild Morning-Glory within the Fog Belt. 169. The 1918 Grain Crop. 170. Fertilizing California Soils for the 1918 Crop. 172. Wheat Culture. 173. The Construction of the Wood-Hoop Silo. 174. Farm Drainage Methods. 175. Progress Report on the Marketing and Distribution of Milk. 176. Hog Cholera Prevention and the Serum Treatment. 177. Grain Sorghums. 178. The Packing of Apples in California. 179. Factors of Importance in Producing Milk of Low Bacterial Count. 181. Control of the California Ground Squirrel. 182. Extending the Area of Irrigated Wheat in California for 1918. 183. Infectious Abortion in Cows. 184. A Flock of Sheep on the Farm. 185. Beekeeping for the Fruit-gi'ower and Small Rancher or Amateur. 187. Utilizing the Sorghums. No. 188. Lambing Sheds. 189. Winter Forage Crops. 190. Agriculture Clubs in California 191. Pruning the Seedless Grapes. 193. A Study of Farm Labor in California. 195. Revised Compatibility Chart of Insecti- cides and Fungicides. 197. Suggestions for Increasing Egg Produc- tion in a Time of High-Feed Prices. 198. Syrup from Sweet Sorghum. 199. Onion Growing in California. 200. Growing the Fall or Second Crop of Potatoes in California. 201. Helpful Hints to Hog Raisers. 202. County Organization for Rural Fire Control. 203. Peat as a Manure Substitute. 204. Handbook of Plant Diseases and Pest Control. 205. Blackleg. 206. Jack Cheese. 207. Neufchatel Cheese. 208. Summary of the Annual Reports of the Farm Advisors of California. 209. The Function of the Farm Bureau. 210. Suggestions to the Settler in California. 211. Saving Raisins by Sulfuring. 212. Salvaging Rain-Damaged Prunes. 213. Evaporators for Prune Drying. 214. Seed Treatment for the Prevention of Cereal Smuts. 215. Feeding Dairy Cows in California. 216. Winter Injury or Die-Back of the Wal- nut. I