754 



INDEX. 



Page. 



Andesite Continued. 



analysis of 



silver in 579,594 



Anthracite in Weber Shales 67,148 



Appalachians, sedimentation in the 



structure compared with Rocky 

 Mountains 20L 292 



Page. 



Balilheail Mountain 135 



BALL MOUNTAIN 219,221,223 



FAULT 215 



AREA BETWEEN. AND WE6TON 



FAULT 219 



Barite in Leadvillo ores 561 



Barium in eruptive rocks 32G, 358, 577, 591, 592 



277 

 51 

 613 

 405 

 199 



ARCHEAN formations 45 > 2 \ BARIUNG-HOWN OF THE FURNACES 



bedding planes in 



rocks, relative age of 



ARGENTIFEROUS LEAD-SMELTING AT LEADVILLB 



ARGENTINE MINE 



ARKANSAS AMPHITHEATER 



DIKE 



Lake 30,41,71,92,249,387,441 



Valley, earliest exploration of 



EROSION 40 



topography of 



A. R. Meyer 



A. R. Meyer & Co., sampling works 



Ascension theory 569, 57( 



Assay furnaces in smelting works 



ASSAYING 



Assays of bullion 



chamber dust 



country rocks 394' ^ 



bearth accretions 



mattes 



shaft accretions 



speiss . 



721 



26 

 104 

 104 



12 



various ores 608,621,622,623,624,625 



vein materials 557,608 



Assay ton, explained 



Atlas sheets referred to in text : 



VI 108,469 



Till. . . .102, 108, 130, 135, 138, 140, 143, 146, 151, 184, 185, 191, 

 194, 198, 199, 205, 206, 287 



IX 135, 138, 152, 154, 155, 158, 162, 165, 172, 176, 177, 179, 



184,204 



x 116,185,212,523 



XIII and XIV 202,412 



XV and XVI 264,265,266,500 



XVII and XVIII 235,239,267.269.500 



XIX and XX 204,223,228,270,271,272,518 



XXI 236,273.500 



XXII - 274,512.517 



XXIII 



XXIV 232,383,395,396,397,399,400 



X XV 232,386,388,390,392 



XXVI 4n 



XXVII 402,403,404 



XXVIII. 409,412,420 



XXIX 400, 410, 411, 432, 435, 438, 439, 440, 442 



XXX 4W, 414, 419, 425, 427, 428, 429 



XXXI *** 



XXXII 454,456,458,464,467,487,488 



XXXin 449, 454, 458, 404, 460, 467, 468, 470, 478 



XXXIV t 450,454 



Augite-bearing diorite 84,334 



Augitic rocks from Henry Mountains 



Average ores, analysis of 544,620 



yield of Leadvilleores 17 



an 



at Smelter C 677 



Bartlett filter described 073 



fnmesfrom, analyzed 717 



Mountain 198,199,201 



BARYTA DETERMINATIONS 577 



Basic ferric sulphate*, defined 376 



analyses of 549, C06 



Basin region structure, compared with Rocky Mount- 

 ains 



Beaver Creek Valley 



Ridge 



Beeger, Prof. Herman 



Bell. I. Lowthian, cited 736,737 



Bergen's Creek, fossils from 



Berthier, P., cited 732-735 



Bieu, Julius 613 



Morris *.l a 



BIG EVANS ANTICLINE 



BIG PITTSBURGH MINI 482 



Billing i. Eilers (Utah) smelter .613, 625, 626, 642, 643, 646, 6U3, 

 695, 698, 701, 708, 710, 711, 712, 719, 721, 722, 725, 727, 729 



Bird's Eye gulch 190,191 



Bischof, G., cited 575,576 



Bismuth 



BLACK HILL no 



referred to 28,302 



KHYOLITE * 



Black Hills of Dakota 



Blake crushers 630,631 



Blanket deposit defined 



BLAST APPARATUS in general 



PIPES in general 683 



system *** 



Block porphyry denned 



BLOWISG-IX OF THE FURNACE . 

 BLOWING our OF THE FURNACE 



77 



668 

 63 



analyses of 65,596,643-040 



541 



05 

 449 



64 

 556 

 236 

 237 



B. 



BAKER'S HOTARY FORCED BLAST BLOWER. 

 Balances used in assaying 



662 



favorable to ore deposition . 



how distinguished from White 

 Limestone 



on Fryer Hill 



specimens of, figured 



Boggs, William K., jr., analyses by 



BREECE FAULT 



AKEANOBTHOR 



HILI 235,506 



IRONM1NE 23'. *" 



ore M9 . 64T 



Breithaupt, A., cited 



Brierton, James 613, Cie 



Buckeye gnlch 



PEAK 



Buck-plate described 



BUCK8KTN AMPHITHEATER 123 



Joe 118,128,524 



Mountain 124,125 



