COLLECTIONS JX ECONOMIC (iKoLOUV AM) Ml". I'ALLCUOV. l.'J'J 



ciAiKK ti>rNr\. 



(1) MftKUctiti'. ClipiuT (iap Miiio. I-Vliniiuy "J. iMdl. (Iv'-Jdl.) 



Ci) Majjiu'tite. (MipiMT (iait Miiu". I'l-liriiiiry 'J, IH-jL (J*2-J7l».) 



(:{) Liiii(>iiiti\ ClipiiiT (iai) Mine, rt-lniiary 2, iHril. (4'i-JH-2.) 



(4) Hematite. Clippci- (Jai* Mine. K.-liniaryJ, 18H1. (.|-i*J80.) 



riMl. 



I ICON Col'XTY. 



(I) Majjuetito, shi)\vin;l(loilt'caho(lial crystals alton'd tososqiiioxiilo of irnii or iiiar- 

 titc. (iroat Wo.Hlciii Mine, Iron Spriiijjs. l>oteiiil»er 11, IHHO. (4:{r»U;.) 

 {•i) Majjiietito. (Jreal Wi-HtiMii Mim*, Iron Springs. Diicenibi-r 11, iHHd. (PJ1T4.) 

 (M) Maf^netito. l?lo\v ( Int Monutain Mine. Di-ctMnbcr 14, 1h<0. (4-J1-^(). ) 



(4) Manjj:aiU'.stMHv, inipnic. Ail»'lai<le Mine. Iroutown. DeceuibtT 1:5, lHe!0. (4'J178.) 



(5) Magnotitt'. Clu'sapcakc Mine. Irontown. December 1:5, It^bO. (4"J182.) 



KK.WICK ((H'.N'TY. 



(1) Limonite. Vnhan .Mine. December 7, 1880. (42188.) 



(2) Hematite. Frisco Mining Company's Mine. December 7, 1880. (421L>0.) 



.ILAH CUl'NTY. 



(1) Limonite, containing manganese. Billing's Mine. December 21, 1880. (4211*8.) 



(2) Hematite. Sailor Hoy Mine. December 21. 18S0. (421%.) 



WKBEIl COUNTY. 



(1) Hematite. Willanl Mine. Wilianl. December 24. 18"<0. (4217L) 



oA'Ado.v. 

 CLACK AM.\S COl'NTY. 



(1> Magnetite. Pro.sser Mine, near Oswego. .January 12, 1^81. (42278.) 



(2) Limonite. Pro.sser Mine, near Oswego. .January 12, 1881. (42277.) 

 (;?) Limouito. Prosser Mine, near Oswego. .January 12, 1881. (4:?6I().) 

 (4) Limonite. Patton Mine, near Oswego. January 12, 18.81. (42275) 



WASniSOTOS. 



.it:fker.s()X c«»rNTY. 



(1^ Limonite. Chimacon Valley Mine. .January 15, 1881. (4:U!.'>0.) 

 (2) Limonite. Chimacon Valley Mine, .lann.ary 15, 1881. (4:J652.) 



The Extraction of Ihon. 



Iron i.s placed upon llic inaiUct iit tlnct' tlisiiiu-t and characteristic 

 forms, depending,' lor llic nio.st part upon the amount and condition of 

 tlie carlion in tiie nu'tal. I-'irst, \vroii<;ht iron, \vhich contain.s litth' or no 

 carbon, and the be.st varieties oidy tritlinjj; amounts of impurities, it may, 

 however, contain considerabh; phosphorus, and when l)adly mannfac- 

 tnred, niay contain considerabh* mechanically inclo.sed ,sla.u'. Second, 

 steel, containin«; from two-tenths to 1.^, per cent, of carbon, witli only 

 triHin.i:" amounts of imjmrities. Third, ]iig iron, rontainini: fri»m LI.) to .1 

 or more per cent, of «arbon. both free and combined, tojicther with 



