CONTENTS. Vil 
CHAPTER III.—Description of mines and productive localities—Continued. Page. 
Lenado—Continued. 
Bim etallic pou clses seem a Ae yet te Se ec oe We de fcc ee Sm OE 202 
esi lives heli peter poten ees er ay ts ee vare meres ey eS mh Sale ee ey A a cha Sp 202 
FRIESTIIN CLOLES COLO Ryan eens ae ee eee ae tas Sune Mee haa = oe ee 202 
@ucen si Gil c heat see as sere Seger BS wee ALS Be ee AU ego) Scie cee eee Sees 203 
WGitilepAmmnilenm in eMyase ene eis ee ena eee en Uh A ape Se eet BAe oe eee anaes 205 
CHAPTERS IVE——Chemicalyseolopyren etter s 5. cs a sciete Se Sota eso ec ese ean eee eee ae 206 
Wolomization meee aN aan eas as Poe ese cee cigh wa on a 206 
ANSON CVO)GI TANT SS Ee oS pe Ss PS eR ae ee et A eye 208 
een tsrOMd OOM IZA ON ere eer ere en on sets ome eae ee Lee ines oe eee SE le eee Paul 
Dolomizationvat GlonwoodtSpringsi 2-22 5s- sees. sees ee ee eee ee 212 
SIlICiiCa tT ONMEEEE ee MRE eae ce Soh Re Laa. aise een Ney tells Ce IRs es woe 216 
LNGTEREN ON sie oe | eS EIS cS Sete ROI a ae ere Th a oa ee 221 
Ore deposition.____ ._.-..------ ese NES RE BAERS COS ee ae ee A eS a SURREY SAE 224 
Nia LUC Ol Ones ammeter a eri a tae ete Sener Se ee ve ARSE oe Hae ESS Cee ae 224 
(Gans e sin eral seeee ee ey ee Pape a te ery ete te ee leas gee iN Ee Mee Nee oe Bee 225 
Compositionvoorestam as tech eee ceo oe ee emisa kee cee ce nes eiee en eee ten eebiasisaeoone 226 
Palas enesispofaveinpmatetialsie we aen seen ane pene eee Peemacins aae See ee ce ola eee 227 
Pocnsyotroreidepositionestees sess sac eee as Sere ee Rey Rees Ne ak eee 2 i 229 
Extent oredepositionrees jae ee ees an ee et es tan eee Mace en ase 231 
ARGUE OF Tania iA ON Go =O meee Saba mee ase a eee Soe oaseasae Sabucencsaceseees 232 
Influence of different rocks on ore deposition.__. .__._-____--_.-.--.---------------- 232 
Process Olemineralizatlomesan. Aes e sae oes cole aeyc eet See eee ee esee eee cee 233 
CaulsevomsprecipitaTloniOtOresese essa) sae == ante nn Se ee eee ee ae ee 284 
Oricinaltsourcerofametalsre wee came acta ee ee Naim ias eee a eka ue eh aes 235 
Changesnmroreisincerdepositlome sear jos oes smear een tn haere oe een Se ee 236 
Mechanical changes __..-_-._-- oe chee Ue at at Renee eealS A oGk Rpe LM Sean cy me a 236 
(Glastron Canes £5 28 Zee oe ee acdsecas hoe eee ase Gass He aa. OAS iSaeEeS ears neeeo Se _ 236 
HISTO fen CTA) Semesters ee eee trea A Se ey She gh Se cae ME ene A ee OS ee Se 242 
CHAPTER V.—Surface changes since ore deposition..-__._.._.-......_-- .------------.----- 243 
PATTOUM TO MeLOSION Gee se neers a eye eye eet et en ne te eee Se aE ae eS Se 243 
Wittere nti aleeroSio nies yee ate seyeee Cee Nees a ae et ical 12 2% Se ee ie oye eee ee 243 
Intlivencevotetanmltsirs pw ate wer Awe See eee sya Evel Shaye =e a RE vet apes Sa ER 244 
(CHG IONA, «Se ae ee ale eerie Soe pe EEE Se ES HoH a be Semana eee ssh Hoe 244 
DirectionrolicennO vem ent sense = = see es et ee ae ey ear ee as ee ese 246 
DIMETISIONS Ohl CosSheObac sey kee cise tks He eee Se ce os eerie eee ee oer 246 
UOATIN SIMONE A COL N Seay tie oe Tne eae ea a AST te te ya Re ek 246 
Ebumteri@reckselacleraacrs chm sere SC Mee el hi ee Siate ae PRN oe oh ao ei ie NAD 249 
ResumermherlaciaWwaction: +82. Messe = ee oe cei ne estes eee UA rn Oe pee en) P 250 
INPPENDIXG—— Measurementiofitamltse os 2 cess o2 2 se ceee ene eee ce eee ee ace eee ee ye eee eee 251 
SSNS ERS erage ae pt rae Nee PEER Oe he ee yea Shy ie SE vee I a atte oe oye te ee cia ete 257 
