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Lea diagrammea auivanta ° illuatrent la mAthode. \^ 1 • 2 f 3 c ■ 6 . „^.. ■..■ A. ., L ^;.,;r..>^. . ^.-tr-r^-r^f- ->t;j-^... -^ -r -^.-?^- . ,. la , . .;■ ::t;* '^t i^ ^"--^t^ t^=i^... . MiCROCOrr RISOIUTION TIST CHARt (ANSI and ISO TEST CHART No. 2) 1.0 I.I 1^ ftzs 1^ 1^ la^ If |3j6 u ' ■ 2.0 iilll^^ ■tuu ■ '•« 1.25 i 1.4 1.6 ^ /IPRLIED IM^GE Ine ^^ 1653 East Main Street , S Rochester, New York 14609 USA • B (716) 482 -0300 -Phone S (7161 288 - 5989 - Fax « bibuotheqS^*''^ .'», • Uni\/6rsUI deliontr^al 28 SCf I MALLEABLE HH EET ZINC The Subscriber calls the attention of the public to the superior malleable quality of the Sheet Zinc.which is now coming into general use, for the purpc^jes of covering Roofs, Flats, Virandas, lining Cisrerns. Troughs, Tanks, Vats, &c., atid also foi^ Kain Water Pipes, Eves, Gutters, Chimney Flueb, Cowls, &c,. and may be used to advantage in all etises where lead and copper were formerly required. It needs only an acquaintance with its properties to ensure its general adoption. It surpasses in point of malleability lead or copper, and is ihore durable. The superiority of Zinc over tin plates is very considersble, as it is not only a great detd more durable, but when it oxides, instead of destroying the metal, it protects it from further in- jury ; and when broken up, which is pot necessary for 50 years, it may be melted in any vessel and id then ^ worth half the original cost, being in a fit state for mixing with copper to make brass. Tin being in plates of 14 inches by 10, and the Sheet Zinc of 7 ft. by 2ft. 8 inches, there is evidently alarg^ saving in labour, an one jointure only will be necessary to be made, whilst in tin plates 40 would be required, and as 40 sheets of tin are required to be joined together to make the size of 2 sheets of Zinc, a great saving of metal will be effected by^the difference of pieces lapped over in making those jointures. V ,vl % ' *•> ■f . 'if.^wi^'^^ J'ilii ^\- y u ■'*■ \ ■' r^H- \ with th. -» l/T"»"tt<>-"»rdiwhenrnmn.~j with the «7„:^rS^to:Si"''fh»'»n.pa«d which it i, now rSeoS J*" "T' P"P°«» *» time at the offic of .1^ w&r ''iSf *'"' *" '"y calculaUon. can also fc..hi„ 'V,mparative they clearly prove Sat Ch*?,.^". ""' •««»ined; cent, chea^f e«ludve „f . i^'.u'' " ?' '«"' 22 pe^ Tew Routes, with «nn„». 'T^ "*"•« cominir* 6e tad by apStiTto • °""'' «""*!:*' *«• " « V ri. .T*. : V7 •; / tE»T1 come in after ba^ tcr ;'* ii mogenef nated or the gra f^ceoft sider all rect, aD< of the si ttielMQK ity>t ■1 d|r¥^ anffimli iB0til q (rust.) • *• ->^ V-. -■;• ,- , , V ■^,'iv-^^i^. 8 tESTIMqil^IALS ANT) CERTIFICATES .i.^- ' 1^0 fpBowing is what I Imve to lay w aDsw^er 10 the leUer you have addressed to me. My opioioo on ih« durahiUtj of Ziiu: in Sheeti^ Qsed^ag 4 eovenog is io your layor, bat uud^ foodir Uon, ihat the sheets m^tk be tbick euougbp no ^ha^4 ihe ^tteplng the uuolean and oxidated (rusty) jtarti^ wliich aoil the t^o large snifaceeof the sueet, cannot come in contact, or approach too near to the ceDtre, after having for. the last time passed under the " flat- ter ;" in this state, the metal 10 really jNivi and tio- mogeneous under the surfaces, and is only contami- nated or oxidated (mst-reaten) on the outside. As to thp grayish coating, which forms at last on the sur- face of the sheets of Zinc, exposed to the air, I con- sider all that Berzeliufljjp said on the subject, as cor- rect, and I think that ^Swuiat att^bute the durability of the sheets of Zinc, exposed to the air, to the hard. wii^mA ineplobiUtyiQ^ this ikind ef rost. I think t^at ttwrMine thing whiohiiappeiied to tin ^tvvnw .0f nv ti9mty>talMs (place >bcre, tfie nut whieh ftwpis #n Ib^ iiMacebwon»eev6f|r solid, aooaprotf^t^theimnMA*- 4ir ^ the metal fran «ny l^uFther wdntiw (inwlinc^, i>ut I.flap«ati^, tot in (wdwito deave lai^y pinaidH bencfitiraHi this ^uiditir^ tbeSbeetsitf 2i«HB Mnst^lie wObmkmy i)ui^,^iiki9X^mSki^^ nf fiwie metal niay «epiin between the t^we iayers of oxide (rust.) I vm, iui. 4«?. A5* ' - ■ , ~ If A 2 (Signed DARCE^ r .' ->^ ■■L. t. J ^ JM^ iSi. ^ u Xj^. ^f wa. covered with Zinc mi™ ,h'.!' .' ''"''''"■«• "hich «^. aod that the ooylnSr S«'''*?''-'''" y^" ftct, andaccordiBgto wS^hTk^^.'^-e'" "W* «he laige baildings" cove^ I^k V "'' "J"''"'' «• to found in different placMiJ™^ ^"^' "W^h «« to be ■«ve that the o°Z?on 'wWr* 'r''? '•"'»' '° >'«- 'y. on the surface of °h'e ZinJ^ tok™ Place in.medi.teu • moiat air, «„« have the effm of 1^^'" "?""'" "' "«' for a very long time! Pfewrving the metal Paris. 20th July, 1836. (Signed) p. BEHTHIER .t.aroas::ft't«^A„h^^^ ««rt»y. that for a tone toe tT.^'"*'"'*"'"'^!. 'flin. the MannfactZ of Mr \. «.""'^«"'« °f ^W nnmber of Bnbl^.«J • f' "°8»elnian, in a e™«t theOalleiyofMineraloCTMd^^ "" «>'erineof Wm the greatest succeaa ^.-Tn '...*' '*'" "nade groyed. ™cce»«, of anall tiles of Zjnc. \ i — -- •*«vo& 1 Buiiaoie, oecause it offers ■ ' V . .';. . ■ ,1 ■, m' ■ . -■*'■. Pf \ . ^ ^ ■^^Ui>h.kU ktAttffi 1 • . , . , Hi H| MMm^^^ Si^*iiAai»«ii -x, „,, ^ Y ^ , • ,. ^.S^iil • • wi«U to my eio»an, •* La "Wing, which 'ty.flve yean ormed a li^ht a in a perfect •J oxidation ding to thii »8erved as to 'ich are to be eaBon to be- ' immediate, ntact of the >g the metal 2R. *yorjjclencf«. Buildings t. at Paris, B of Zinc » a great I'y at the ^ring of -aining a en made f Zinc, overing offers two advantagM. which are seldom found united, namfe- ly, economy and tolidity, Paris, the 20lh June, 1836. . (Signed) CH8. ROHAULT. ^ S^een, to authenticate the signature oi Mr. RohauU. Architect of the Works of th» Museum of Natural History. (Signed) EDMOND BLANC, Master of Requests, Secretary General for the Home Department. 6th July. 1836.* ^^ , r a The same Certificate given by Mr. Lacorn6e, Ar. chitect, having superintended the construction of the •* Hotel du Quai d'Orsay." We, the Visiting Captains of Ship* attached to the Tribunal of Commerce, by land and by sea. hold, ng its Sessions at Havre, certify, that m vessels fast- ened ^tf Iron bolts and nails and covered with Zmc d^tiave never observed any deterioraUon either in the ^nc sheathing or in the Iron nails or boUsi arismg from the reciprocal action of one metal upon the other. Sat evei in theZinc sheathing fastened with Iron n^Us which were tinned, instead of Zinc nails, we Save'observed no oxidation which might be attributed to the contact of the two metals. We <^rtify mo^ ver that in vessels fastened with Iron nails and bolts, Ind covered with Copper, although the contact be not direct, the Copper destroys the Iron m a few years. Havre, the 30th July, 1836. (Signed) PhiUppe, Thomas, M, CoJw-^jPrf. ^oig J Grmont, Gnat und Jh. Rton. ■i\ ^v- t ' • . . "■"'■'•. ;,* .1 " ■ ■ . 'H. k ■ it- • .' ■ •. N * , .■ •^ ^ ^ , ' ' '. . - ,-.'r 1-, „ , ^ i,'* ^^'-•.-''-^^ .&!«< 4 i 4 '«» »>» «^«^L protect. ; butX tttioS '5; TS^' " ""hS /-U.oae,.n.ctive,th.TSri°^{^!,<'r:X;tt ia tbn intf withatand tich bctw and nails tofroU 1 Iron cov intoiarti comes o; from tw( These Bel is DC out Co( six incb the ste knowm vesselt Qopper* age, it ti (Signe '■ , •! ^•V,: ■ . A,"-. t • :.■.. . "■".-' - - ■ . t - > ■ ■ ■ _ ■ , • ■ >■ . ':■ ■ ■ , . . btt^,:. ■ '"^: ■ ■^'■_- . V ' H^ ^ «-,vS &4* *a»i ' wnm • ''•'*^ Irrinh. ntaSiDK mdolhtt piece., .nd t»M tokea ptojf .tL^^icIt^ of Xani pap« and ina«- Iron covenng of *e •""'-'T; p„--^, -heaihinr be- Mines oxidated and unretviceable. Wer a pa>»ge from two to three montha. Theie fact, are «o notorioo.; that not a »'"'8]« J"' Ihese '*"' "7 . a .„ becopper-bottomcd.with- Ml ii n. Ffe Umre, ttedto, DI. iltwfUnd fite*. / / ,V-\ , ' f "^w ' •tf-ffl -* . .8' , . ,.. We, Mayol^ of the Town of Havre.certify hereby, that the penont who have aflSxM their ai^aturea to the above, twentv-four in oUmber, are ali%erchant- owneri atid Captains of VesBels, or Sbipbaiiders, living in this town, and that credence ooght to be' given thereunto. ' Given in the City HaU. Havre, the 2d Aug. 1836, (Signed) A. LBMAISTRE. • Seen, to authcoticate the signature of Mr. a! Le. maistre. Mayor of Havre, v ; : / , :; Havre, the 2d August; 1836. •Seal and Signature of the SobuPrefcct. cofK^wnw, Given, By oic Eegtstere inch Certifi( tnv handi 1*. TheBuigomaater andAIdermenof theCity of Brussels. Agreeably to the requelst which has been addressed to them in the pame of Mr* Fran9ois Dominique Mos- seln^, and at the. same, time to do homage to truth declare that the great Theatre Royal of the City of ]»fi«tol8, was itt 1820,. covered with sheets of Zmc, from the Manufactory of Mr. Mosselman.which sheets were laid down by Mm, that thiVkihd of covering |ias ent&elf anawtoifed its purpose, as ain^tbe said peiibd Iktirepiirs hayelwbii reqiiisite, exc^ a very trifling oIgM^ irhicfa wis ocda^dned by an accident j that after a late e:imiiiimitibD, It lias beea found that this cover, inj; ia itill in very gpod condiaoo, and does not show anj^ trace of d^jfect or decay, that in fact, experience seems to pql^ out, that; of all thematerials used un. til now In the cov^*^:of bmldinga at Bruiiels, Zinc appears to be the mbist suitable. My Dear I from me, I hope w I join obaervati at the PI this sort lidity, di ber work simple tt ing. Tfc spoken, i — ^!'!''^^?^irai'gr'a!S!^s'i^r'r ^^f^B^V^Jl^^W^bMf(i£.'^«\''jk}^ ^ ^'^?^^P^^^^'i*-^»**i''' "^J ^t 'V, f- *t- > ^r l-WTOFW;^/*^'* -■■■■'■■;■■■ (« .. ■ ;-:^ :■■ ■■■v... Given 4tt* a^yBW>)6iWrt%lW^ By ankrpf the Sscmt9c]9» ;: > * ^^(^ Segistered at Brussels, the 1 7th Aagtist. I83B Vol. ^1 , ^99, Ho. CI. d, reeeired « fo. .l*^ cent. adl. - ' (Signed) BIEP^VBNU. Certified to be true copies of the originals placed in mv hands. . pr pre. P. D. MOSSELMAN, lArrabue.l No. 7, Chaussf (l'A;iitin Street. ; Paris, 18th »^^ My Dear Friend, I herewith send the Certificate you requested from me, io your note of the 22d February last.which I hope will be sufficient for your purpose. I join to the attestation it conveys, my own personal observation, made use of in building the £ntrep6t at the Place des Marais, and I have ascertained that this sort of roof unites aU the desirable qualities of so- lidity, durability and above all of economy. The tim- ber work for Zinc roof may be much lighter and moi» simple than that required for any other sort of c6ver^ ing. That of the Bntrepdt of which I have above spoken, is an example of what I state. & **?■*■■ 5-. , i bare buat .tor« of • rin^ rtonr, the frmii-woik of wwS hM been intended for a'Ztnc loof, «nd the Smto woA cost at least ooe-half lew than the ro^of anV^Sungto be co».r«Jwitb tile, or d««. Thi. » «S immense laving in labour which ha. Wn attested Sy K. builders in Psyis. who have readily adopted theapriicationofthis principle mall cases similar to that ?o Xch I refe?. The building on the Quai DOrsay. one of the moat imposing of pur time, the buUdtogof the Museum of Natural History, and a great number of privatehouses are covered wUhZinc, The preference which has been given m these m- stance to this material, over the system pursued up ta ^s time, sufficiently establishes its superiority over all others. I am, &c. ^, GRILLON, Architect, Inspector Genei^l of Civil Buildings. .■,±as,s. ,4 '»■ w? i^vfr ...,"... •^"■i '■'>'/, ' ■> ' ( ..... .: (.;;/ w <