512 



GENERAL INDEX. 



[34 



Robinson, H. H., summation of 

 analyses of igneous rocks, 41, 

 257; Barrell's Piedmont terraces 

 edited, 49, 227, 327, 407. 



Robinson, W. I., Paleozoic Alcyo- 

 narian Tumularia, 42, 162; Tetra- 

 coralla, etc., 43, 337. 



ROCKS. 



Bahiaite, 41, 330. 



Calcite-brucite rocks, Rogers, 46, 



582. 

 Charnockite series, Washington, 



41, 323- 



Chemical Analyses, Washington, 



45, 238; 48, 161. 

 Diabase, Rhode Island, 46, 452; 



cylinders, Emerson, 41, 321. 

 Gabbro, lopolith, Grout, 46, 516; 



Rhode Island, Hawkins, 46, 



455 - 

 Granite, Kansas, Powers, 44, 146; 



Twenhofel, 43, 3&3; 48, 132. 



— hypersthene, 41, 324. 



— Killarney, Collins, 41, 564. 

 Green schist, Rhode Island, 46, 



449- 



Hommel's Petrography, 50, 75. 



Hyalo-dacite, 50, 453. 



Italite, new, 50, 33. 



Lavas of Morro Hill, Cal., War- 

 ing, 44, 98. 



Leucite rock, 50, 33. 



Magmatic sulphide ores, Tolman 

 and Rogers, 44, 156. 



Metagabbro, etc., Adirondacks, 

 48, 147. 



Myrmekite, 43, 338. 



Nephelite rocks, Hawaiian, 50, 

 274. 



Norite, 41, 328. 



Obsidian, Lipari, 50, 446. 



Peridotite. Spain, Urals, 43, 173. 



Pumicite, Nebraska, Barbour, 44, 



83. 

 Quartz diorite, hypersthene, 41, 



326. 

 Rocks, Analysis, Hillebrand, 49, 



78. 



— of Cuzco, Peru, Gregory, 41, 

 1. 



— eruptive, at Cuttingsville, 

 Vermont, Eggleston, 45, 377. 



— foliation and metamorphism, 

 Bonney, 48, 477. 



— Igneous, of Carrizo Mountain, 

 Arizona, Emery, 42, 349; den- 

 sities of, Iddings, 49, 363; 

 summation of analyses, Robin- 

 son, 41, 257. 



ROCKS. 



Rocks, Silicate, extraction of 



potash, Ross, 43, 485. 

 Rhyolites, Lipari, 50, 446. 

 Tertiary intrusives in New Mex- 

 ico, Semmes, 50, 415. 

 Trachyte, Hawaiian, 50, 268. 



Rockwood, E. W., Chemical Anal- 

 ysis, 41, 144. 



Rocky Mts., Mesozoic physiog- 

 raphy, Lee, 47, 78. 



Rodents of Iowa, Stoner, 47, 239. 



Rogers, A. F., cristobalite in Cali- 

 fornia, 45, 222; American oc- 

 currence of periclase, 46, 581; 

 manganese minerals, San Jose, 

 Calif., 48, 443. 



Roscoe, H. E., Biographical Sketch, 

 Thorpe, 43, 80. 



Rose, J. N., Cactacese, 49, 222. 



Ross, C. S., age of iron ore in East- 

 ern Wisconsin, 41, 187. 



Rowley, R. R., Edgewood lime- 

 stone of Pike Co., Missouri, 41, 

 317. 



Russell, E. J., Soils and Manures, 

 42, 283; Soil Conditions and 

 Plant Growth, 45, 423. 



Rutherford, E., penetrating power 

 of X-rays, 44, 401. 



Ruthven, A. G., Animal Biology, 

 50, 76. 



Rydberg Series Constant, Curtis, 

 49, 300. 



St. Lawrence river, birth of, Spen- 

 cer, 43, 351. 



Sakhalin, "Miocene flora" of, 

 Kryshtofovich, 46, 502. 



Sakura-jima, Eruption in 1914, 

 Koto, 43, 338. 



Salt crystals, formation, Long, 43, 

 289. 



— deposition, Grabau, 50, 468. 



— dome, Texas, Powers, 4g, 127. 

 Sand fusions from gun cotton, 



Munroe, 43, 389. 



— rounding of, Galloway, 47, 270; 

 Kindle, 47, 43L 



Sangamon, 111., fossil beetles 



from, Wickham, 44, 137. 

 Sanitation, State, Massachusetts. 



Whipple, 43, 496. 

 Sarawak Museum Journal, 46, 479. 

 Sarker, B. K., Hindu Achievements 



in Science, 47, 230. 

 Sauchelli, U., succinic acid as a 



standard, 41, 244. 



