INDEX. 



571 



OBITUARY. 



Abegg, B., 566. 



Agassiz, A., 464, 561. 



Angstrom, K. J., 566. 



Barnes, C. R., 464. 



Bidwell, S., 276. 



Fraipont, J., 566. 



Huggins, Sir Win., 566. 



Landolt, H., 566. 



Loper, S. W., 464. 



Nikitin, M. S., 276. 



Philippi, E., 566. 



Whitfield, R. P., 464, 565. 

 Observatory, Allegheny, publica- 

 tions, 368, 560. 

 — Harvard College, 276. 

 Optik, meteorologische, Pernter, 362. 

 Orangia, Geological notes, Johnson, 



558. 

 Ostwald's Klassiker der Exacten 



Wissenschaften, 464. 



Palache, C, mineralogy of Franklin 



Furnace, N. J., 177. 

 Palaeontolgia Universalis, 462. 

 Paleogeography of North America, 



Schuchert, 552. 

 Palmer, H. E., potassium ferricya- 



nide in the estimation of arsenic, 



etc., 399. 

 Parks, W. A., Lepadocystis clin- 



tonensis, Ontario, 404. 

 Parsons, A. L., sclerometer, 162. 



goethite, 235. 

 Peckham, S. F., Solid Bitumens, 



459. 

 Pennsylvania geol. survey, 266. 

 Perkins, C. C, determination of 



free bromine, etc. , 338 ; silver in 



the determination of molybdenum, 



etc., 540. 

 Pflanzen-anatomie, Physiologische, 



Haberlandt, 195. 

 Physics, Elements, Crew, 83. 

 Pirsson, L. V., astrophyllite in the 



granite at Quincy, Mass., 215. 

 Plants of Connecticut, 559. 



Radio-activity and Geology, Joly, 

 83. 



Radiology and electricity, Congress, 

 92. 



Radium emanation, action upon the 

 elements of the carbon group, Earn- 

 say and Usher, 80. 



Radium, practical application, Bax- 

 ter and Tilley, 188. 



— production of, 189. 



— and uranium in minerals, ratio, 

 Gleditsch, 79. 



Raindrops, influence of thunder on 



size of, Laine, 190. 

 Ransome, F. L., bismite, 173. 

 Reflection, positive changed to nega- 

 tive through pressure, Lummer and 



Sorge, 264. 

 Rhode Island, granites, etc., Lough- 



lin, 447. 

 Richardson, C, natural naphtha 



from Cuba, 439. 

 Richardson, G. B., stratigraphy of 



the upper Carboniferous in Texas 



and New Mexico, 325. 

 Roberts, E. J., separation of cerium, 



45. r 2 



ROCKS. 



Basaltic magma, crystallization, 



Fenner, 217. 

 Dodecahedral jointing, Lahee, 169. 

 Granite, crystallization in, Mackie, 



366. 

 — at Quincy, Mass., astrophyllite 



in, Pirsson, 215. 

 Granites and. metamorphic sedi- 

 ments in Rhode Island, Loughlin, 



447. 

 Lujavrite, new, Lapland, 367. 

 Petrography of Erythrea, East 



Africa, Manasse, 87. 

 Petrography of the Urals, Duparc, 



272. 

 Rocks, flow of, Adams and Coker, 



465. 

 Rogers, A. F., anhydrite, etc., from 

 Kansas, 258. 



Schaller, W. T., bismite, 173 ; re- 

 fractive index of Canada balsam, 

 324 ; composition of hulsite and 

 paigeite, 543. 



Schuchert, C, Paleogeography of 

 North America, 552. 



Sclerometer, new, Parsons, 162. 



Shaler, N. S., Autobiography, 90. 



Smithsonian Institution, report of 

 Secretary, 196 ; Board of Eegents, 

 197. 



Sosman, R. B,, nitrogen thermome- 

 ter from zinc to palladium, 93. 



Spectrum, extreme infra-red, Eubens 

 and Hollnagel, 552. 



Suess, E., das Antlitz derErde, 269. 



