630 



1OT)EX. 



Page. 



Carboniferous period, thickness of 



strata iu Great Basin 8 



Cardium curtum 459, 460, 462 



Carmany, J. H., & Co 97 



Carpenter, Mr., cited. 602 



Carson Eiver 11 



Carson reservoir of tailings 261 



Casli, Mr., cited 686 



Casliier lode 598 



Central, mining claim on Comstock 99 



Central City, Colorado 419, 493 



Clialk Creek fossils 459 



Challenge, claim on Com stock 99 



Cheever, Mr., cited 597 



Chemicals, used in Washoe amal- 

 gamation 199, 248, 249, 287 



Chemicals, used in working slimes 



254, 255 

 action of upon ore . . 275, 277 

 Chemistry of Washoe process 



273,286,293 

 vein materials of 

 Comstock lode . 87 

 Chenango Company, Snake Eiver 



Colorado 624 



Chihuahua mine, Nevada 439, 443 



in Colorado 617 



Childs, W. T., cited 439 



Chimneys, or ore channels, in the 



Comstock lode 40 



Chinese labor 313 



Chloride Flat 412, 428 



Chloride of copper, action of on ore 



276, 287 



Chlorination works in Colorado 586 



Chollar-Potosi, mine on Comstock 40, 99 



ore bodies of 53 



mining costs of . . 152,155 

 operations of 175 



Page. 



Clionophyllum 415 



Chrisman coal mine 469 



Chromic iron, occurrence of 5 



Church mine 469 



Claims on Comstock lode 99, 100 



Clark, George T., cited 555 



Clark, F. A., cited 594 



Classilication of Comstock ores 193 



Clark-Gardner mine 528 



Clay in Comstock lode 71 



expansive force of 60, 111 



analysis of 89 



Clayton, J. E., cited 415 



Clay veins in Comstock lode, rela- 



tive age of. 



83 



Clay veins in Comstock lode, silver- 

 tenure of 83 



Clear Creek Coianty, Colorado 490 



Clifton, altitude of 347 



Cliff lode, Colorado 603 



Coal beds, age of, in California and 



east of the Great Basin 9 



Coal in Green Eiver Basin 451 



Colorado 481 



of the Cretaceous and Ter- 

 tiary Periods 9 



Coal-bearing rocks of Colorado 481 



Great Basin. 465 

 Coaley lode, near Black Hawk, Col- 

 orado 486 



Coaley lode. Snake Eiver district, 



Colorado 546 



Coalville 456,457 



district 467 



fossils from 460 



Cog gearing, for hoisting 135 



in Savage works 136 



in Crown Point works 136 



in Hale and Norcross. 137 



