CIHM Microfiche Series (IMonograplis) ICIMH Collection de microfiches (monographies) Canadian Instituta for Historical Microraproductiont / Institut Canadian da microraproductiont hittoriquas Technical and Bibliographic Notes / Notes techniques et bibliographlques The Institute has attempted to obtain the best original copy available for filming. Features of this copy which may be bibliographically unique, which may alter any of the Images in the reproduction, or which may significantly change the usual method of filming are checked below. D D D D D D D D \^ D D Coloured covers / Couverture de couleur Covers damaged / Couverture endommag^e Covers restored and/or laminated / Couverture restaur^e et/ou pellicui^e Cover title missing / Le titre de couverture manque Coloured maps / Cartes geographiques en couleur Coloured ink (i.e. other than blue or black) / Encre de couleur (i.e. autre que bleue ou noire) Coloured plates and/or illustrations / Planches et/ou illustrations en couleur Bound with other material / Reli6 avec d'autres documents Only edition available / Seule Edition disponible Tight binding may cause shadows or distortion along interior margin / La reliure serr6e peut causer de I'ombre ou de la disto'-sion le long de la marge int^rieure. Blank leaves added during restorations may appear within the text. Whenever possible, these have been omitted from filming / II se peut que certaines pages blanches ajout6es lors d'une restauration apparaissent dans le texte, mais, lorsque cela 6tait possible, ces pages n'ont pas 6t6 f ilm6es. Additional comments / Commentaires suppl^mentaires: L'Institut a microfilm^ le meilleur ?xemplaire qu'il lu! a 6t6 possible de se procurer. Les details de cet exem- plaire qui sont peut-6tre uniques du point de vne bibli- ographique, qui peuvent modifier une image reproduite, ou qui peuvent exiger une modification dans la m6tho- de normale de filmage sont indiqu^s ci-dessous. I I Coloured pages / Pages de couleur I I Pages damaged / Pages endommag6es I I Pages restored and/or laminated / Pages restaurtes et/ou pellicul^es Pages discoloured, stained or foxed / Pages d^color^es, tachet^es ou piqu^es El I I Pages detached / Pages d6tach6es I /| Showthrough/ Transparence I I Quality of print varies / n n Qualit6 in^gale de I'impression Includes supplementary material ' Comprend du materiel suppl6men ..^ Pages wholly or partially obscured by errata slips, tissues, etc., have been refilmed to ensure the best possible image / Les pages totalement ou partiellement obscurcies par un feuillet d'errata, une pelure, etc., ont 6t6 film6es k nouveau de fajon k obtenir la meilleure image possible. Opposing pages with varying colouration or discolourations are filmed twice to ensure the best possible image / Les pages s'opposant ayant des colorations variables ou des decolorations sont film6es deux fois afin d'obtenir la meilleure image possible. This item la filmed at the reduction ratio checlted below / Ce document eat film* au taux de reduction indiqui ci-dessous. lOx 14x 18x 22x 26x 30x J 12x 16x 20x 24x 9fty 99w The copy filmad h«r« has batn reproduced thanks to tha ganarosity of: NatloiMl Library of Canada Tha imagas appaaring hara »r9 tha bast quality possibia considaring tha condition and lagibility of tha original copy and in kaaping with tha filming contract spacifications. Original copias in printad papar covars ara filmad beginning with tha front covar and ending on the last page with a printed or illustrated impres- sion, or the back cover when appropriate. All other original copiaa ara filmed beginning on the first page with a printed or illustrated impres- sion, and ending on tha last page with a printed or illustrsted impression. The last recorded frame on eech microfiche shall contain the symbol -^ (meening "CON- TINUED"), or the symbol V (meaning "END"), whichever applies. Maps, plates, charts, etc.. may be filmed at different reduction ratios. Those too large to be entirely included in one exposure an filmed beginning in the upper left hand corner, left to right and top to bottom, as many frames as required. The following diagrams illustrate the method: L'«x«mptair« film* fut reproduit grice A la g^niroslt* da: Bibllothdque iMtionale du Cauda Las imagat tuivantat ont M raproduitas avac la plus grand soin. compta tanu da la condition at da la nanat* da I'axamplaira film*, at an eonformit* avac las conditions du contrat da filmaga. Laa axamplairaa originaux dont la couvartura an papiar aat imprim«a sont film*s an commandant par la prttritr plat at 9n tarminant soit par la darniira paga qui comporta una amprainta d'imprassion ou d'illustration, soit par la tacond plat, salon la cas. Tous las autras axamplaires originaux sont film*s an commandant par la pramiAra paga qui comporta una amprainta d'impraasion ou d'illustration at an tarminant par la darniira paga qui comporta una talla amprainta. Un daa symbolas suivants apparaftra sur la darnl*ra imaga da cfiaqua microficha. salon la cas: la symboia -^ signifia "A SUIVRE" la symbola V signifia "FIN". Las cartas, planchas, tablaaux. ate. pauvant etre film*s * das taux da reduction diff*rents. Lorsqua la documant ast trop grand pour *tra raproduit an un saul clich*. il ast film* * partir da I'angla sup*riaur gaucha. da gaucha * droite, at da haut an bas. an pranant la nombra d'imagaa n*cassaira. Las diagrammas suivants illustrant la m4thoda. FOODS AND DRUGS LABORATORY OP TBB DEPARTMENT OF TRADE AND COMMERCE OTTAWA, CANADA .s BULLETIN No. 421 / -4 FLOUR SUBSTITUTES -\ 64S73 :Ji| I t ¥m m m U' f-1 NO \.a AND COMMENTS. Under this heading, as occasion arises, the Bulletins issued by thi Departme.it will contain, as an appendix, such comment as may seem necessary or advUable upon matters relating to the work of the Department in connection with the administration of the Adulteration Act, the Fertilizers Act, the Feeding Stuffs Act or the Proprietary Medicines Act It frequently happens that correspondents ask information regarding the above Acts, of such a nature that the matter in question possesses general interest, and comment upon it would' prove acceptable and useful to others than the immediat* qu^tioner. In such cases the reply may find a place in these columns. For " '- venience of reference these notes will be numbered in series. A. MiiOILL, Chief AndltltL ■W» Corn (Maize) Flour 110 aamplea. Kye Flour 3« Buckwheat Flour 23 " f " Barley Flour u " Oat Flour 4 " Mixed or Blended Flour 90 " Total 208 " ^ Many gamples exhibited small amounts of intermixture with cereals other than that under which name they were sold; but in most instances, less than 6 per ceat. and in few exceeding 10 per 'MMit; so that, considering the exceptional conditions which obtained in 1»18, I musi regard this intermixture as accidental, rather than as indi- cating any intention to defraud. The exceptions are a few cases of Buckwheat flour, which contained from 15 to 25 per cent wheat flour. As Buckwheat flour is- usually employed in making pancakes it ie often sold as Pancake Flour and apparently the addition of wheat flour is looked upon as an improvement of the article for this purpose. Some 15 of these samples (corn and rye flours) were found to contain worms (larvte) and their excreta. It is known that flouVs of low grade (ground from grain from which the husk has been less completely removed) are prone to develop worm- iness more r^dily than those which have been more carefully bolted. I am, however, not in a ponitiou to say,that the samples referred to were sold in a wormy condition, as it was impdssible to examine them until they had been some weeks in storage here. \ Fortunately the abnormal conditions under which these flours were manufac- tured and marketed, have l)ecome of the past; and it is improbable that millers will be tempted to produce a flour of such character as certain of those now reported, when free to relegate the whole of the fibrous part of the grain to the various forms of stock feed. I ^fg to recommend publication of this report as Bulletin No. 421. I have the honour to be. Sir, Your obedient servant, ■ A. McOILL. , ~ Chief AnaHytL m