480 



GENERAL INDEX. 



[44 



Rhode Island, geology of Iron 

 Mine Hill. Joliiison and War- 

 ren, 25, 1. 



— granites, etc., Loughlin, 29, 

 447- 



Rice, W. N., Geology of Connec- 

 ticut. 23, 385. 



Richards, R. W., Mineral Charac- 

 ters. 23, 232. 



Richardson, C, natural naphtha 

 from Cul:)a, 29, 439. 



Richardson, G. B., Paleozoic for- 

 inations in Trans-Pecos Texas, 



25, 474; stratigraphy of the 

 upper Carboniferous in Texas 

 and New Mexico, 29, 325. 



Ries, H., Economic Geology, 21, 

 256; 30, 426; Clays, 23, 71; Clay- 

 Working Industry, 28, 563. 



Righi, A., Modern Theory of 

 Physical Phenomena, 21, 328; 

 Radio-activity, etc., 23, 463; La 

 Materia Radiante, 28, 77. 



Rignano, E., Centroepigenesis, 23, ; 

 468. I 



Rio Grande, aggraded terraces, 

 Kej^es, 24, 467. 



— Mississippian of. Gordon, 24, 

 58. 



Road Preservation, Judson, 26, i 

 589. I 



Roberts, E. J., separation of 

 cerium, 29, 45. 



Robinson, B. L., Gray's Botany, 



26, 518. 



Robinson, H. H., geol. map of 

 Connecticut, 23, 392; Tertiary 

 peneplain of Plateau district, 

 of Arizona, etc., 24, 109. 



Rochester quadrangle, geologic 

 map, Hartnagel, 25, 154. 



Rock Minerals, Iddings, 23, 152. 



Rocks, Chemical Analysis, Wash- 

 ington, 30, 89. 



— and Rock Minerals, Pirsson, 

 26, 403. 



— and Rock-weathering, Merrill, 



23. 149- 



— Study of, Fletcher, 27, 490. 



— Work on, Iddings, 28, 502; 

 Rosenbusch, 23, 394; 26, 583. 



ROCKS. 



Alkaline rocks of eastern Af- 

 rica, Arsandaux, 23, 230. 



Analyses of igneous rocks, 

 Osann, 21, 183. 



Ancient volcanic rocks of North 

 Carolina, Pogue, 28, 218. 



ROCKS. 



Aplite, Belknap Mts., N. H.. 

 Pirsson and Washington, 22, 

 439. 



Barium in rocks, Langley, 26 

 123. 



Basaltic magma, crystallization, 

 Fenncr, 29, 217. 



Camptonite, Pirsson and Wash- 

 ington, 22, 498. 



Cancrinite-syenite from Kuola- 

 jiirvi, Sundell, 21, 254. 



Composition of rocks and me- 

 teorites compared, Merrill, 

 27, 469. 



Cumberlandite, R. I., 25, 12. 



Diabase dike in Potsdam sand- 

 stone, Virginia, Watson, 23, 

 89. 



— of New Jersey, Lewis, 26, 

 155- 



Dodecaliedral jointing, Lahee, 



29, 169. 

 Dutch Guiana, petrography, 



Beekman, 27, 410. 

 Elastic constants of rocks, 



Adams and Coker, 22, 95. 

 Eruptive rocks in Mexico, 



Guild, 22, 159. 

 Essexite, Belknap Mts., N. H., 



Pirsson and Washington, 22, 



495- 

 Flow of rocks (marble), Adams 



and Coker, 29, 465. 

 Gabbro, altered, at Cumberland, 



R. I., Warren, 26, 469. 

 Gases in rocks, Chamberlin, 27, 



190. 

 Gneiss, Gunstock, 22, 505. 

 Granite, crystallization in, 



Mackie, 29, 366. 



— Lighthouse, near New 

 Haven, Conn., Ward, 28, 131. 



— at Quincy, Mass., astrophyl- 

 lite in, Pirsson, 29, 215. 



— and gneiss of Finland, Sed- 

 erholm, 25, 157. 



Granites and metamorphic sedi- 

 ments in Rhode Island, 

 Loughlin, 29, 447. 



Igneous intrusion, theory of, 

 Daly, 26, 17. 



— rocks of Finland and Kola 

 peninsula, Hackman, 21, 85. 



— — Natural History, Harker, 

 28, 503. 



Kodurite, 24, 181. 

 Laterites, origin, Maclaren, 23, 

 229. 



