XXVI GEOLOGY AKD MINING INDUSTRY OF LEADVILLE. 



Page. 



Plate XXI. Micro-sectioDS of audesite. Appendix A 354 



Figs. 1, 2, and 4. Andesite from Buffalo Peaks. 



3. Zircon crystals in quartz graiu of a Lincoln Porphyry. 



PART II. 



XXII. Vein pbenomeua, showing replacement action 420 



Fig. 1. Evening Star Incline. 



2. Glass-Peudery mine. 



3. Carbonate Incline. 



4. Forsaken Incline. 



XXIII. Circular furnace, smelter A 749 



XXIV. Revcrberatory furnace and dust chamber, smelter A 749 



XXV. Flue arraugemeut, smelter A ''49 



XXVI. Rectangular furnace, smelter B 749 



XXVII. Circular furuace, suieller B 749 



XXVIII. Bartlett smoke filter — McAllister charcoal kiln 749 



XXIX. Rectangular furnace, smelter C 749 



XXX. Dust chamber, smelter C 749 



XXXI. Blast arraugemeut and elevation of works, smelter C 749 



XXXII. Furuace and dust chamber, smelter D 749 



XXXIII. Furnace and dust chambers, smelters F and M 749 



XXXIV. Dust chamber, smelter F 749 



XXXV. Square furnaces, smelter G 749 



XXXVI. Zones of temperature — Elevation of smelter G 749 



XXXVII. Circular furnace, smelter H 749 



XXXVIII. Dust chamlier, smelter H —Jolly's spring-balance 749 



XXXIX. Assay furuace, smelter H 749 



XL. Dust chamber, smelter J 749 



XLI. Blake crushers 749 



XLII. Blowers — Uaker's aud Root's 749 



XLIII. Assay implements 749 



XLIV. Smelter's implements 749 



XLV. Allien crusher — Furuace aud dust chamber, smelter I 749 



Fig. 1. Sauidine froiu Nevadite 34ri 



2. Highland Chief mine 501 



3. Colorado Prince and Miner Boy mines 504 



4. Florence mine. Printer Boy Hill 510 



5. Taylor Hill 511 



6. El Capitau mine 536 



