INDEX. 



509 



Minerals — 



Rhodotilite, 499. 



Scheelite from Idaho, 414. Serpen- 

 tine, Montville, N. J., 237. Sperry- 

 lite, anal., 67 ; crystalline form, 71. 

 Stibnite, 501. 

 Thenardite, Cal., 235. Tourmaline, 

 brown, N. T., 237. 

 Mixter, W. G., Elementary Chemistry, 



409. 

 Morong, T., journey in S. A., 321. 

 Mueller, P. von, Key to the System of 



Victorian Plants, 416. 

 Museum, National, proceedings, vol. x, 

 421. 



N 



Nason, P. I., localities of N. Y. miner- 

 als, 237. 



Neumayr, M., Die Stamme der Tbier- 

 reichs, Bd. I, 235. 



Newell, J. H., Outlines of Lessons in 

 Botany, Pt. I, 419. 



Nichols. E. L., direction and velocity of 

 electric current, 103. 



Norway, Geology of, Reusch, 498. 







Obituary — Barnard, F. A. P., 504 ; 

 Dechen, Heinrich von, 422 ; Ericsson, 

 John. 422; Kjerulf, 'Theodor, 422; 

 James, U. P., 322; Law, Annie E., 

 422 ; Meneghini, Giuseppe, 422. 



Objectives, secondary chromatic aberra- 

 tion for double, Hastings, 291. 



Oceanic depression, deep troughs and to- 

 pography of, Dana, 192, 242; near 

 Tongatabu in the Pacific, 420. 



Ores, see Geology. 



Packard, A. S., recent discoveries in 

 Carboniferous flora and fauna of R. I., 

 411. 



Parry, C. C, Ceanothus, 418. 



Penfield, S. L., crystals of Sperrylite, 

 7 1 ; pyrite crystals, French Cr., Pa., 

 209 ; crystallized Bertrandite, Me. 

 and Col., 213; etching of quartz, 401. 



Penrose, R. A. F., Jr., nature and ori- 

 gin of deposits of phosphate of lime, 

 413. 



Personal equation machine, new, Winter- 

 halter, 116. 



Petrography, see Rocks. 



Photographic dry plates, effect of stain- 

 ing upon, 76; figures produced by 

 electric action on, 226. 



Photography, orthochromatic, 229. 



R 



Radiant energy, history of, Langley, 1. 

 Rayleigh, composition of water, 492. 

 Reusch, H., Bomeloen og Karmoen, 498. 

 Rocks — 



Archaean and Huronian, Winchell, 497 . 



Augite-syenites, Irving's, Bayley, 54. 



Basaltic lavas of Sandwich Islands, 

 E. S. Dana, 441. 



of Fernando de Noronha, Williams, 

 178. 



minerals in, Levy, 414. 



monazite as an element in, Derby, 109. 



ophiolite, N. Y., Merrill, 189. 



of Pigeon Pt., Minn., Bayley, 54. 



peridotite, Elliott Co., Ky., Diller, 219. 



quartz-keratophyre, Minn., Bayley, 54. 



Bosenbusch's tables, 414. 



of Sandwich Islands, Dana, 441. 



serpentine of N. J., analysis, Merrill, 

 237. 

 Roemer, F., Fauna der Kreide von 



Texas, 318. 

 Rose, J. N., Revision of N. A. Umbel- 



liferse, 417. 

 Rosenbusch, H., Hiilfstabellen zur mi- 



kroskopischen Mineralbestimmung in 



Gesteinen, 414. 

 Ruuge, C, iron spectrum, 495. 

 Rutley, F., fulgurite of Mt. Viso, 414. 



Sabine, W. C, steam in spectrum analy- 

 sis, 114. 



Sandwich Islands, see Hawaiian. 



Seymour, A. B., Index of the Fungi of 

 IJ. S., 79. 



Shaler, N. S., Cambrian of Bristol Co., 

 Mass., 76. 



Smith, J. D., Enumeratio Plantarum 

 Guatemalensium, etc., Pt. I, 419. 



Smith, R. H., Graphics, 504. 



Smith, S., list of dredging stations in N. 

 American waters, from 1867-1887, 

 420. 



Sound, diffraction of, Stevens, 257. 



Spectra, absorption, of mixed liquids, 

 Bostwick, 471 ; metallic. Hutchins, 

 474. 



Spectrum analysis, steam in, Trowbridge 

 and Sabine, 114; absorption, of oxy- 

 gen, 224 ; of cyanogen and carbon, 

 227; of iron, 495; of magnesium, 406 ; 

 of ox} r gen at high altitudes, 224; 

 solar, oxygen lines in, 75 ; solar, pho- 

 tographic map of, 240. 



Steam, electrified, 316. 



Steinmann, G., Elemente der Palaontol- 

 ogie, 235. 



