754 



INDEX. 



Page. 



291, 292 

 45, 276 



Andesite — Continueil. 



analysis of 



silver in 



Anthracite in VTeber Shales 



Appalachians, sedimentation in the 



structure compared with Eocky 



ilotintains 



Archean formations 



Tjedding planes in 



rocks, relative age of 



AEGEXTIFETiOUS LEAD-SMELTING AT LEAD VILLE 



ARGEKTI.NE mixe 



AEKAXSAS AMPHITHEATER 



Dike 



Lake 30,41,71,92,249, 



' Valley, earliest exploration of 



EROSION 



topography of 



A. R. Meyer 



A. E. Meyer &. Co., sampling works 



Ascension theory 



Assay furnaces in smelting works 



ASSATIXG 



Assays of bullion 



chamber dust 



country rocks 



hearth accretions 



mattes 



shaft accretions 



...608,621,622,623,024,623 



vein materials 



As.say ton, explained 



Atlas sheets referred to in text : 



VIII. . . . 102, 108, 130, 135, 138, 140, 143, 146, 151, 184, 



194, 198, 199, 205, 



IS 135, 138, 152, 134, 155, 158, 162, 165, 172, 176, 



S 116,185, 



XIII and SIV 



XV and XVI 264,265, 



XVII and XVIII 235, 239, 267, 



XIS and XX 204, 223, 228, 270, 271, 



XXI 236, 



XXII 274, 



XXIII 



XXIV 232, 383, 395, 396, 397, 



XXV 232,386,388, 



XXVI 



XXVII 402, 



XXVIII 409, 



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



XXX 409,414,419,425,427, 



XXXI 



XXXII 454,456,458,464,467, 



XXXin 449, 454, 458, 464, 4«6, 467, 468, 



XXXIV 



Augite-bearing diorite 



Augitic rocks from Henry Mountains 



Average ores, analysis of 



yield of Leadville ores 



B. 



Bakers uotary forced ulast elower 



Balances used in assaying 



633 



108, 469 

 185,191, 

 206, 287 

 177, 179, 

 164, 204 

 212, 523 

 202, 412 

 260, 500 

 269, 500 



272, 518 



273, 500 

 512, 517 



233 

 399, 400 

 390, 392 



401 

 403, 404 

 412, 420 

 440, 442 

 428, 429 



451 

 467, 488 

 476, 478 

 430, 454 

 84, 334 



361 

 544, 620 



Page. 



Baldhead Mountain 135 



Ball Mouxtalv 219, 221, 223 



FAULT 215 



ABEA BETWEEN, AND .VVESTON 



FAULT 219 



Baritein Leadville ores 561 



Barium in eruptive rocks 326,358,577,591,593 



Barrlxg-down of the furnaces 066 



at Smelter C 677 



Bartlett filter desciibed 673 



fumes from, analyzed 717 



Mountain 198, 199, 201 



Bartta determinatioxs 577 



Basic ferric sulphates, defined 376 



analyses of 549, 606 



Basin region stmcture, compared with Eocky Mount- 

 ains 26 



Beaver Creek Valley 104 



Eidge 104 



Beeger, Prof. Herman 12 



Bell, I. Lowthian, cited 736,737 



Bergen's Creek, fossils from 62 



Berthier, P., cited 732-735 



Bleu, Julius 613 



Morris x,613 



Big Evjixs .oticlixe 200 



Big Pittsburgh Mixe 482 



Billing & Eilers (Utah) smelter. .613, 625, 626, 642, 643, 646, 693, 

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



Bird's Eyo gulch 190,191 



Bischof, G., cited 575,576 



Bismuth 377 



Black Hill 170 



referred to 28, 302 



Ehtolite 349 



Black Hills of Dakota 22,45 



Blake crushers 630,631 



Bliinket deposit defined 371 



Blast ai-pakatus in general 661 



pipes in general 663 



system 664 



i Block porphyry defined 77 



BLOWIXG. IX OF THE furnace 665 



BLOWINGOUT OF THE FURNACE 068 



Blue LiiihSTOXE 63 



analyses of 65, 596, 643-646 



favorable to ore deposition 541 



how distinguished from 'White 



Limestone 05 



on Fryer Hill 449 



specimens of, figured 64 



Boggs, 'William E., jr., analyses by 556 



Breece fault 236 



area north of 237 



Hill 235,500 



IRONMINE 237,49!) 



ore 559, 647 



Breithaupt, A., cited 573 



Brierton. James 613,626 



Buckeye gulch 190 



Peak 103 



Buck. plate described 032 



Buckskin amphitheater 123 



.Toe 118,128,324 



Mountain 124,125 



SECTION 128 



