118 
BIBLIOGRAPHY AND INDEX OF N. A. GEOLOGY, [bull. 162. 
Chemical Analyses — Continued. 
Phyllite, Diller, No. 234. 
Plagioclase, Diller, No. 234. 
Pulaskite, Cushing, No. 181. 
Pulaskite, Diller, No. 234. 
Pulaskite-syenite, "Washington, No. 851. 
Pyroxene, Diller, No. 234. 
Pyroxenite, Diller, No. 234. 
Residual rocks, Diller, No. 234. 
Rhodolite, Hidden and Pratt, No. 348, 
Rhyolite, Diller, No. 234. 
Rhyolite, Smfth, No. 714. 
Rhyolite gneiss, Weidnian, No. 857a. 
Rhyolitic obsidian, Diller, No. 234. 
Rhyolitic perlite, Diller, No. 234. 
Rhyolitic pumice, Diller, No. 234. 
Rhyolitic tuff, Turner, No. 777. 
Quartz-alunite rock, Turner, No. 778. 
Quartz-amphibole diorite, Turner, No. 778. 
Quartz-banakite, Ransome, No. 648. 
Quartz-basalt. Diller, No. 234. 
Quartz-norite-gneiss, Diller, No. 234. 
Quartz-syenite, Cushing, No. 181. 
Sandstone, Diller, No. 234. 
Sandstone, Prosser and Cumings, No. 643. 
Sanidine, Diller, No. 234. 
Sanidine-bearing andesite, Ransome, No. 648. 
Saxonite, Diller, No. 234. 
Serpentine, Diller, No. 234. 
Serpentine, Turner, No. 777. 
Shale, Diller, No. 234. 
Slate, Diller, No. 234. 
Slate, Mathews, No. 531. 
Smithsonite, Warren, No. 848. 
Soda, Knapp, No. 443. 
Soda, Knight, No. 448. 
Sodalite, Diller, No. 234. 
Solvsbergite, Washington, No. 849. 
Syenite, Becker, No. 56. 
Syenite, Diller, No. 234. 
Syenite-porphyry, Cushing, No. 181. 
Talc, Smyth, No. 719. 
Telluride ore, Pearce, No. 613. 
Theralite, Diller, No. 234. 
Tinguaite, Washington, No. 849. 
Trachyte, Diller, No. 234. 
Trachyte, Ransome, No. 648. 
Travertine, Diller, No. 234. 
Tuff, Diller, No. 235. 
Vitrophyric latite, Ransome, No. 648. 
Volcanic dust, Diller, No. 234. 
Volcanic rock, Andrews, No. 15. 
Zircon, Diller, No. 234. 
Classification. 
Basis of time divisions and classification of 
geologic historjr, Chamberlin, No. 145. 
Classification and nomenclature of geologic 
time divisions, Clark, No. 153. 
Classification and nomenclature of geologic 
time divisions, Gilbert, No. 290. 
Classification and nomenclature of geologic 
time divisions, Keyes, No. 417. 
Classification and nomenclature of geologic 
time divisions, Le Conte, No. 478. 
Classification and nomenclature of geologic 
time divisions, Willis, No. 898. 
Classification — Continued. 
Classification and nomenclature of geologic 
time divisions, Williston, No. 907. 
Classification of Mississippian series, Weller, 
No. 864. 
Classification of stratified rocks, Williams, 
No. 887. 
Genetic classification of geological phenom- 
ena, Keyes, No. 420. 
Geological versus the petrographical classifi- 
cation of igneous rocks, Cross, No. 172. 
Geology of Erie County, Grabau, No. 312. 
Rock classification, Iddings, No. 383. 
Symposium of classification, Calvin, No. 125. 
Use of local names in geology, Keyes, No. 
416. 
Colorado. 
Anthracite in the Rockies, Hosea, No. 380. 
Devonian in southwestern Colorado, Spencer 
and Girty, No. 725. 
Dike on Columbia vein, Palmer and Stoddard, 
No. 597. 
Clays of Colorado, Ries, No. 663. 
El Paso coal field, Lakes, No. 466. 
Eluorine mine, Lakes, No. 467. 
Fossil flora of Florissant, Kirchner, No. 442. 
Geologj* of Aspen, Lakes, No. 460. 
Geology of Aspen mining district, Emmons, 
No. 260a. 
Geology of Aspen mining district, Spurr, No. 
739a. • 
Granite breccias of Cripple Creek, Stone, No. 
751. 
Krennerite from Cripple Creek, Chester, No. 
150. 
Mesa Verde, Newell, No. 574. 
Mines of La Plata Mountains, Petre, No. 
625. 
Mining industries of Telluride quadrangle, 
Purington, No. 644. 
Ore occurrence in Red Mountain, Lakes, No. 
468. 
Ores of Vulcan mine, Lakes, No. 471. 
Peculiar ore body, Lakes, No. 470. 
Prospecting refineries, Lakes, No. 465. 
Report of Bureau of Mines, Lee, No. 479. 
Rosita and Silver Cliff, Lakes, No. 463. 
Silver Cliff district, Lakes, No. 461. 
Silver Pick mine, Spaulding, No. 722. 
Telluride ore, Pearce, No. 613. 
Telluride ores. Lakes, No. 464. 
Telluride veins in La Plata Mountains, Aus- 
tin, No. 23. 
Tellurium and Telluride ores, Lakes, No. 469. 
Tenmile folio, Emmons, No. 259. 
Upper Cretaceous section, Spencer, No. 724. 
Vein structure in Enterprise mine, Rickard. 
No. 656. 
Volcanic craters, Lakes, No. 462. 
Volcanic rock of Alum Hill, Andrews, No. 15. 
Connecticut. 
Holyoke folio, Emerson, No. 258. 
Physiography, Davis, No. 200. 
Triassic formation of Connecticut, Davis, No. 
199. 
