498 



GENERAL INDEX. 



Air. rarefied, as a conductor, v, 231. 

 results of analysis of, i, 83. 

 variations in amount of oxygen in, 

 ii, 417, 429. 



Air-thermometer, Micheison, iv, 92. 

 for chemical purposes, iii, 143. 



Alabama, crystalline rocks of, xxx, 278. 

 geological reports, ii, 80; v, 311. 

 Old Tertiary of, Meyer, ix, 45*7, xxx, 

 60, 421 ; Hilgard, ib., 266 ; Smith, ib., 

 270 ; Aldrich, ib., 300. 



phosphatic deposits in Cretaceous 

 of, vii, 492. 



Alaska, glacier phenomena of, viii, 74. 

 notes on, Dall, i, 104, iv, 67. 



Aldrich', T. H., Tertiary of Alabama, xxx, 

 300. 



Algebra, Peirce, iii, 336. 



Alizarin-blue, soluble, iv, 468. 



Alizarin-orange, preparation of, iii, 486. 



Alkali lands, reclamation of, i, 407. 



Alkalinetry, new indications for, xxx, 75. 



Alkaloids, natural mydriatic, i, 400. 



Allantoin in vegetables, iii, 147. 



Allen, G., Colors of Flowers, v, 236. 



Allen, 0. D., deep-sea magnesian lime- 

 stone, vi, 245." 



Allen, T. P., Characeas Americanse, iv, 72. 



Allotropic states, density and chemism 

 of elements in different, vi, 317. 



Alloys, formation of, by pressure, iii, 485. 



Alps, see Geology and Glacier. 



Altitude, see Height. 



Altitudes, Diet, of, Gannett, ix, 424. 



Aluminum, atomic weight of, i, 321. 



Amalgams, thermo-electric relations of, 

 ix, 60. 



American Journal of Science and Arts, 

 in 1818, vi, 79. 



American Philosophical Soc, xxx, 86. 



Ammonia, direct synthesis of, i, 498. 



Ammonium, tribromide, iii, 145. 



Andrews, E., glacial markings of un- 

 usual forms, vi, 99. 



Animals, see Zoology. 



Annals of Mathematics, vii, 80. 



Anthemene, a hydrocarbon of chamo- 

 mile, viii, 149. 



Anthony, W. A. Elementary Physics, ix, 

 61. 



Anthracene, new synthesis of, vi, 66. 



Anthracite, see Geology. 



Antimony, atomic weight of, vii, 55. 



Antiques, fraudulent, Putnam, vii, 498. 



Antiitz der Erde, Suess, vii, 151 ; ix, 418. 



Arabinose, identical with lactose, i, 236. 



Arizona, Deer Creek coal field, Walcott, 

 ix, 338^ 



Minerals from : iarosite, i, 160 ; 

 vanadates, etc., ii, 198, 410, viii, 145 ; 

 dioptase, iii, 325; turquois, v, 197. 



Arizona, pre-Carboniferous of, Walcott, 



vi, 437, 484. 

 Armsby, H. P., digestion experiments, 



ix, 355; xxx, 83. 

 Arsenic, separation of, ix, 166. 



spectrum of, Huntington, ii, 214. 

 Arsenides, formation of, by pressure, v, 



381. 

 Arsenobenzene, ii, 71. 

 Artesian wells in New Haven Trias, v, 

 386. • 



in New Jersey, Cook, xxx, 161. 

 at Cleveland, 0., xxx, 316. 

 Arzruni, groddeckite, vii, 74. 

 Ash of epiphytes, iv, 299. 

 Ashbumer, C. A., Anthracite survey of 

 Pennsylvania, ii, 152. 



Pennsylvania Geological Reports, 

 i, 155, 241, 409; ii, 152; v, 387: 

 vii, 407; viii, 234; xxx, 160. 



Atlas of Panther Creek Basin, v, 

 . 387 ; vii, 407. 

 Assimilation, color and, v, 312. 

 Association, American, meetings of, ii, 

 86 ; iii, 495 ; iv, 157 ; vi, 159, 248 ; vii, 

 497; viii, 78; xxx, 87. 168. 



papers before, ii, 240; iv, 303; vi, 

 325 ; viii, 303, 307 ; xxx, 315, 322. 

 British, at Aberdeen, xxx, 405. 

 at Montreal, vii, 496 ; viii, 300. 

 Lubbock's address, ii, 268, 343. 

 Southampton meeting, iv, 310. 

 Southport, vi, 332,412. 

 Asteroids, see Planets. 

 Astronomical Bibliography, i, 415; iv, 

 76. " 



conference, international, ix, 79. 

 observations at Dunsink, ix, 78. 

 papers of American Ephemeris, v, 

 317. 



Society, Memoirs of, i, 335. 

 Astronoinische Nachrichten, iii, 160. 

 Atmosphere, buoyancy of, Cooke, vi, 38. 



See Air. 

 Atomic theory, vi, 63, 310, 478. 

 weight of platinum, ix, 253. 

 weights, new determination of. vii 

 482. 



relations among the, vi, 236; vii, 

 485. 

 Atropine, i, 400. 



Aurora borealis, annual change of, xxx, 

 240. 



of Sept. 12-13, 1881, Schceberle, ii, 

 341. 

 Australia, supposed subterranean drain- 

 age of, iv, 295. 

 Auk, the, vii, 159 '; ix, 76. 



