538 



GENERAL INDEX. 



[34 



Ocean, bottom deposits off American 

 coast, Murray, i, 221. 



bathymetric map, Dana, vii, 192, 

 242. 



crater in bottom, near the Canaries, 

 i, 226. 



depths of South Pacific, ix, 412. 



Oceanic depression, deep troughs and 

 topography of, Dana, vii, 192, 242; 

 near Tongatabu in the Pacific, vii, 420. 



Ohio, geol. reports, ii, 241 ; vi, 68. 



Ohm, changes in the, iv, 228 ; re-deter- 

 mination of, Jones, xl, 419. 



Ohm's law, experimental proof, Maver, 

 xl, 42. 



Oldham, wind-drift scratches in India, 

 vii, 413. 



Oliver, Treatise on Algebra, iii, 325. 



Oppolzer, 0. d', Traite de la determina- 

 tion des orbites, i, 480. 



Optical angles, estimation, Lane, ix, 53. 



Optometer, spectroscopic, i, 60. 



Oregon, surface geology, Biddle, v, 475. 



Ores, see Geology. 



Orton. E., petroleum and gas of Ohio, ii, 

 241 ; rock pressure of natural gas of 

 Trenton Limestone of Ohio and Indi- 

 ana, ix, 225. 



Osborn. H. F., structure and classifica- 

 tion of the Mesozoic Mammalia, vi, 

 390 ; Mammalia of the Uinta forma- 

 tion, ix, 403. 



Osborne^ T. B., higher oxides of copper, 

 ii, 333. 



Oswald's Klassiker der exakten "Wissen- 

 schaften, Nos. 1-3, viii, 256 ; xl. 499. 



Owen, M. L., Plants of Nantucket, Mass., 

 vi, 393. 



Packard, A. S.. Entomology for Begin- 

 ners, vi, 297 ; recent discoveries in 

 Carboniferous flora and fauna of R. I., 

 vii, 411. 



Pacific Ocean, see Ocean. 



Palaontologie, Elemente, von Steinmann 

 und Doderlein, ix, 240. 



Paleontology, Manual, Nicholson and 

 Lydekker, ix, 239. 



and Geology, American, Miller, ix, 

 67. 

 See Geology. 



Panebianco, R., Rivista Min. Crist. Ital- 

 iana, vol. i, v, 86. 



Parallax of a Tauri, iv, 79. 



Paris Exposition of 1889, xl, 96. 



Parry, C. O, Ceanothus, yii, 418. 



Partridge, E. A., atomic weight of cad- 

 mium, xl, 377. 



Patterson, H. N., Check-List of N. A. 

 Plants, iii, 244. 



Pax, F., Species of Acer, i, 237. 



Peck, W. G., Analytical Mechanics, v, 

 346. 



Peirce, B. O., measurement of internal 

 resistance of batteries, viii, 465. 



Pendulum, isodynamic surfaces of com- 

 pound, Nipher, i, 22. 



nearly perfect simple, iii, 238. 



Penfield, S. L., brookite crystals, i, 387. 

 herderite and beryl, ii, 107; mete- 

 orites from Utah and Missouri, ii, 226; 

 pseudomorphs of garnet, ii, 307 ; com- 

 position of ralstonite, ii. 380 ; vana- 

 dinite from Arizona and New Mexico, 

 ii, 441. 



phenacite from Colorado, iii, 1 30. 

 composition of howlite, iv, 220 ; tri- 

 clinic feldspars with twinning stria- 

 tions on the brachypinacoid, iv, 390. 

 polianite, v, 243. 



bertrandite, Mt. Antero, Col., vi, 52 ; 

 mineralogical notes, vi, 317. 



crystals of sperrylite, vii, 7 1 ; py- 

 rite crystals, French Cr., Pa., vii, 209; 

 crystallized bertrandite, Me. and Co!., 

 vii, 213 ; etching of quartz, vii, 401, 



lansfordite, nesquehonite, new min- 

 erals, ix, 121 ; spangolite, new copper 

 mineral, ix, 370; hamlinite, new min- 

 eral from Maine, ix, 511. 



fayalite in the obsidian of Lipari, xl, 

 75 ; composition of connellite, xl, 82 ; 

 crystallographic notes, xl, 199; chal- 

 copyrite crystals from Chester Co., 

 Pa., xl, 207 ; anthophyllite, Franklin, 

 Macon Co., N. O, xl. 394; beryllium 

 minerals of Mt. Antero, Col., xl, 488. 



Penhallow, D. P., tendril movements, i, 

 46, 100, 178. 



Pennsylvania, geol. reports, i, 70, 227 ; 

 ii, 162, 408; v, 85, 415; vi, 153. 



Penrose, R. A. F., Jr.. nature and origin 

 of deposits of phosphate of lime, vii, 

 413 ; Tertiary and Cretaceous of Ar- 

 kansas and Texas, viii, 468. 



Penzig, 0., Studi botanici, etc., iv, 494. 



Perkins, C. A , vapor tension of sul- 

 phuric acid, and cathetometer micro- 

 scope, xl, 301. 



Perkins, G. EL Catalogue of the Flora 

 of Vermont, vi, 394. 



Personal equation machine, new, Win- 

 terhalter, vii, 116. 



Peruvian arc, measurement of, Preston, 

 ix, 1. 



Peters, E. D, Modern American Meth- 

 ods of Copper Smelting, v, 88. 



Petrography, see Bocks. 



Pfeffer, Beitrage zur Kenntniss der Oxi- 

 dationsvorgange in lebenden Zellen, 

 viii, 166. 



