Index 



Potter Creek Cave, California, Noth- 

 rotherium from, 164; mammals 

 from, 462; list of fauna from, 468. 



Pre-Cambrian Rocks of the Region 

 of the Great Lakes, The Correla- 

 tion of the, 1; classification of, 2, 

 3; criteria of correlation, table 4, 

 showing, 18. 



Pre-granitic division of time, 12. 



Prehnite, 351; analysis of brown var- 

 iety of, 352. 



Prepotherium, 283. 



Preptoceras, absence of, in Hawver 



Cave, 470, 471. 

 Presque Isle granite, 9. 

 Proarctotherium, 108, 109. 

 Proboscidean from Manix Lake, 51S. 

 Procamelus, 81, 441. 

 Procyon psora, 470. 

 Pronomotherium, 431. 

 Prosthennops, 126. 



Proterozoic, confusion in use of term, 

 19. 



Psephis tantilla, 47. 

 Pseudaelurus, 442. 

 Pseudolestodon, 275, 277, 283. 

 Purpura nanna, 310; plate showing, 

 325. 



turris, figure of, 253. 

 Pyrite, 352; in Leona Heights, 367, 

 373, 374; figure showing gouge 

 surrounding, 373. 

 Pyroxene, 349. 

 Quartz, 350. 



Quartz-monzonite porphyry, composi- 

 tion and description of, 330. 



Quartzite, Mesnard, 8; Sturgeon, 8; 

 Sunday, 8; Palms, 9; Ajibik, 9; 

 Goodrich, 10. 



Quaternary system in Sunshine anti- 

 clines, Wyoming, 455, 459; terrace 

 gravels, 455 ; two periods of deposi- 

 tion, 455; alluvium, 455. 



Radiolites, hamlini. referred to Cir- 

 ripedia, 41. 



Rainy Lake, geologic district in Great 

 Lakes region, 6. 



Rana draytonii, 289. 



Rancho La Brea, series of mylodont 

 skulls from, 165; Mylodon har- 

 lani found in, 268; amphibian 

 remains in, 287; compared with 

 Hawver Cave, 474; bison at, 519; 

 fauna of, compared with that of 

 Fossil Lake, and of Lake Lahon- 

 tan, 518, 519, 520; wolf group 

 from, 531; Felis daggetti found, 

 535. 



Rancho La Brea, An Extinct Toad 



from, 287. 

 Rancho La Brea, Recent Studies on 



the Skull and Dentition of Nothro- 



therium from, 137. 



Randville dolomite, 8. 



Ransome, F. L., cited, 208, 377, 398, 401. 



Rattlesnake formation, age of, 427, 



492; list of fauna from, 428. 

 Rautenberg, M., cited, 275, 277. 

 Raymond, W. J., cited, 40. 

 Recent fauna in the vicinity of Hawver 



Cave, 475. 

 "Red rocks," excluded in correlation 



of pre-Cambrian rocks, 5. 

 Redtop Mountain, Wvoming, 446, 456. 

 Reef (Serpula [?)), in Etchegoin, 216. 

 Relationships of Pliocene Mammalian 



Faunas from the Pacific Coast and 



Great Basin Provinces of North 



America, 421; time relations, 439; 



correlation with Old World faunas, 



442. 



Repossi, E., cited, 65. 



Republican River, Kansas, fauna from 



437, 438, 440. 

 Rhinocerotid, indet., 135; remains of, 



117. 



Rhyolite, Leona, soil of, 362; physio- 

 graphy of, 362; area occupied by, 

 362; extrusion as a lava flow, 365, 

 366; distribution, age of, 366; 

 faulting, 366, rift valley, 366, 

 presence of pyrite, 367; width, 

 367; thickness, 367; reducing effect 

 of, 377; geologic map of, foil. 383. 

 Petrographic characters, 368; four 

 fades: felsite, 368, vitrophyric, 

 369, felsophyric, 369, microlitic, 

 369, distribution of, 370; minerals 

 in, 371. 

 Chemical characters, 371. 



Rhyolitic tuffs in Etchegoin, 208. 



Ricardo fauna, 116, 422, 430, 431. 



Ringold formation, Columbia River, 

 Washington, 255, 256; plates show- 

 ing, 267. 



Riversideite, a new mineral, 347; 

 analysis of, 347; water determina- 

 tion of, 347, 348. 



Rock Creek, Texas, Mylodon harlani 

 from, 269. 



Rodentia from Hawver Cave, 486. 



Russell, I. C, cited, 256, 517, 518. 



Saddle Mountains, Washington, 263. 



Salinas Valley, California, 304. 



Samvvel Cave, mammals from, 462; list 

 of fauna, 469; fauna of later than 

 that of Fossil Lake, 519. 



San Andreas fault compared with 

 Haywards fault, 366. 



San Antonio formation, 364. 



San Diego, California, fauna forma- 

 tion, 47, 49, 50. 



San Francisco Bay, conditions of depo- 

 sition along eastern shore, 409-410. 



San Luis Quadrangle, Santa Mar- 

 garita fauna collected in, 302. 



[549] 



