CONTENTS, 



Part II. 

 MINING INDUSTRY. 



Argeutiferous lead smelting at Leatl 

 lutroduetiou 



Page. 

 3G7 

 •M7 



Chapter I. Ore deposits 



Classification of ore deposits in general 



Leadville deposits 



3S0 

 II. Iron Hill group of mines 



Iron Hill 



North Iron Hill 



III. Carbonate Hill group of mines 



General .structure 



Soutliern group of mines 



Northern group of mines 



IV. Fryer Hill group of mines 



General description 



Mine workings 



K(5sum^ 



V. Other groups of mines 



Mines and prospects in the Leadville region 



Mines and prospects outside the Leadville district 



VI. Genesis of Leadville deposits 



Manner of occurrence 



Composition of ores 



Composition of vein materials 



Ores deposited as sulphides 



Mode of formation 



Origin or source of the metallic minerals 



ArPKXiMX B, BV W. F. Hillebrand. 

 CHEMISTRY. 

 Tables of analyses aud notes on met hods employed 



380 

 401 

 40;i 

 409 

 414 

 4-29 

 445 

 44.-> 

 455 

 48D 

 493 

 493 

 51'J 

 539 

 540 

 543 

 556 

 562 

 565 



5(;9 



589 



589 



Eruptive rooks y„ 



Limestones 



Ores and vein materials 



Appendix C, by Antony CJuyard. 



METALLURGY. 



599 



013 



y,^.]",.. G13 



G14 



Preliminary conditious of smelting 



Materials used in smelting „ 



Plant and smelting operations 



Products of smelting 



Theoretical discussion 



731 



749 



Metallurgical plates. . ,.„ 



General iuiiex '■ 



365 



