31] 



VOLUMES XLI-L. 



509 



Ophiuroidea, Japanese, Matsumoto, 



44, 404. 



Optical contact of glass by heat, 

 Parker and Dalladay, 43, 411. 



Ordovician, Madison, Indiana, Mc- 

 Ewan, 50, 154. 



Oregon Cascades, geology, Smith, 

 46, 546. 



— radiolarian cherts, Smith, 42, 

 299, 504. 



Oreodonts, Loomis, 50, 281. 



Organic Compounds, Identifica- 

 tion, Mulliken, 42, 166. 



Organism, Unity of, Ritter, 49, 220. 



Osborn, H. F., Men of the Old 

 Stone Age, 41, 217; Origin and 

 Evolution of Life, 45, 77; Equi- 

 dse, 46, 770. 



Osteological Material from Machu 

 Picchu, Eaton, 42, 86, 281. 



Ostwald, W., Colloidal Chemistry, 

 41, 295; 47, 226. 



Ozark Highland, Missouri, geog- 

 raphy, 4g, 219. 



Ozone, Vosmaer, 42, 432; absorp- 

 tion bands, Fowler and Strutt, 



45, 143. 



— and ultra-violet transparency of 

 the atmosphere, Strutt, 46, 543. 



Pacific Islands, problems, Daly, 41, 

 153- 



— volcanic domes in, Powers, 42, 

 261. 



Page, L., a century's progress in 



physics, 46, 303. 

 Paleobotany, Seward, 49, 223; 



Guppy, 49, 372; Wieland, 49, 382. 

 Paleogeography, Arldt, 50, 238; in 



the Arctic, Holtedahl, 49, 1, 308. 



— See GEOLOGY, Cycads, etc.; 

 also Plants. 



Paleontology, Davies, 50, 467; von 

 Zittel and Broili, 44, 336. 



— Invertebrate, Woods, 50, 170. 



— present tendencies, Berry, 48, 1. 



— vertebrate, development, Lull, 

 46, 193- 



Paleozoic diastrophism, Schuchert, 

 50, 339- 



— of Lake Timiskaming, Hume, 

 50, 293. 



— See GEOLOGY. 



Palmer, H. S., determination of 

 depth of strata, and projection 

 of dip, 47, 236. 



Parker, G. H., Nervous System 

 47, 452. 



Parsons, C. L., Elements of Min 

 eralogy, etc., 43, 420. 



Passivity, electron theory of, Dean 

 47, 123. 



Pasteur, History of a Mind, Du- 

 claux, Smith and Hedges, 50, 80 



Patagonia, San-Jorge formation 

 Windhausen, 45, 1. 



Pearl, R., Genetics, 41, 379. 



Pearson's method for arsenic de- 

 termination, 48, 391. 



Peat in Wisconsin, Huels, 41, 225. 



Pebbles, rounded, Australia, Jut- 

 son, 48, 429. 



Pennsylvania, geologic section, 

 Butts, 46, 523; Middle Ordo- 

 vician, Field, 48, 403; oil and gas 

 map, 1915, 42, 84. 



Periodic table, modification, Hackh, 

 46, 481. 



Perkins, E. H., Dighton conglom- 

 erate of Mass. and Rhode Island, 

 49, 61. 



Perret, F. A., lava eruption of 

 Stromboli, 1915, 42, 443. 



Perry, H., Theories of Energy, 45, 

 419- 



Peru, Andes of, Bowman, 43, 416; 

 Cuzco, geology, Gregory, "41, 1; 

 Indians of, Ferris, 43, 339; osteo- 

 logical material from Machu 

 Picchu, Eaton, 42, 86, 281. 



Peters, C. A., succinic acid as a 

 standard, 41, 244. 



Peterson, O. A., American Dicera- 

 theres, 50, 396. 



Petrography, Hommel, 50, 75. 



Petroleum Handbook, Andros, 49, 

 214. 



Petrology, Weinschenk and Jo- 

 hannsen, 43, 173; Hawaiian, 

 Powers, 50, 256; rise of, Pirsson, 

 46, 222. 



Petrunkevitch, A., Morphology of 

 Invertebrate Types, 43, 421. 



Pharmacognosy, Kraemer, 41, 380. 



Philippine Islands, mineral re- 

 sources, 1914, 41, 224; Journal of 

 Science Index, 45, 424. 



Phillips, A. H., new zinc phos- 

 phates from British Columbia, 

 42, 275; new forms of natrolite, 

 42, 472; vanadium in sedimentary 

 rocks, 46, 473. 



Phosphate deposits of Florida, Sel- 

 lards, 41, 299; Matson, 41, 300. 



