ALU 
Allen, J. A., luminous appearances 
in the atmosphere, iv, 341. 
Allen, W., on the curves of tri- 
section, iv, 343. 
Allen, Z., volume of the Niagara 
river, xlvi, 67.f 
Allinson, S. Jr., on the atomic 
weight of mercury, xvi, 183. 
Allomorphite, xlii, 386. 
Allotropism of chlorine, J. W. Dra- 
per, xlix, 346.f 
Alloxan and Alloxantine, prepara- 
tion of, W. Gregory, xli, 54. 
Alloy of tin and antimony, action 
of, with nitric and muriatic acids, 
xlix, 206. 
Alluvial district (tertiary and cre- 
taceous) of New Jersey, vi, 237. 
deposits at Malbay, L. C., v, 
221. 
of the Mohawk, xxiii, 
Neen of the Connecticut valley, 
vi, 80, 83. 
Jaulberseinna of the valley of the Musk- 
ingum, xxix, 9. 
Almonds, bitter, amygdaline in, xix, 
384. 
Aloes, medicinal effects, xxiv, 274. 
Alpaca and Alpaca wool, remarks 
on, xli, 63. 
Alphabet, proposed change in the’ 
English, xxxix, 197; xlvii, 420. 
Alpnach, slide of, xxiv, 124. 
Alps, notice of Hugi’s Travels in, 
with some account of the geolo- 
gy of, xxvii, 296. 
, Bernese, ascent of the high 
peak Fisteraarhorn, by Hugi, 
xxvill, 301. 
, atmospheric “* cannonade” in 
XXvili, 303. 
, notice of Forbes’s travels in, 
and account of icebergs, xlvi, 172. 
Alum, manufacture of, at Salem, 
Mass., vi, 372. 
, manufacture of, at Glasgow, 
xli, 49. . 
, used for alabaster, xxx, 168. 
9 
AMI 
Alum, native, of a cavern in South- 
ern Africa, xxviii, 290. 
, in Connecticut, i11,240 ; 
Vill, 200); x, 12! 
» In Massachusetts, 1, 
AY vali ao: 
, in New York, vi, 95; 
1x, 44; xv, 243. 
, in Vermont, viii, 243. 
——, in mica slate, xx, 418. 
——, magnesian, or Pickeringite, 
analysis of, A. A. Hayes,xl|vi,360. 
—— earth, and alum manufactory, 
Maryland, xxvii, 12. 
Alumslate, iii, 28. 
Alumstone, ili, 245. 
Alumina, use of, with pigments for 
the pallet, xvi, 173. 
Aluminium, obtained by W. W. 
Mather, xx, 408. 
, characters of, F. Wohler, 
xlix, 390. 
, chloride of, W. W. Mather, 
xxvil, 241, 248, 253. 
Amalgam of gold, alembic for dis- 
tilling, M. F. Maury, xxxiii, 66.f 
Amber, vegetable origin of, ii, 353. 
, origin of, xxvill, 2938. 
——., Berendt on, xxxvii, 365. 
——, from Ava, xxviii, 71. 
, from the Chesapeake and 
Delaware Canal, xvii, 292. 
, from Maryland, iil, 8. 
— —, from the island of New Pro- 
videnees Xa Legil 
America, early discovery of, by the 
Scandinavians, xvii, 410. ; 
Amethyst, in the Ganadeel vill, 63. 
, in Massachusetts, 1, 113. 
——, in New Jersey, 11, 197. 
, in Nova Scotia, xxx, 348. 
——, in Rhode Island, viii,199,229. 
, in the Western States, i, 132; 
vil, 48. 
Amianthus, i in Connecticut, vi, 225. 
, 1n Massachusetts, 1, 343. 
, 1n New Jersey, v, 266. 
, in New York, i, 54; v, 29; 
1xe "40. 
method of coloring crystals 
of, vii, 194. 
, in Penta erinacia vill, 239; 
x, 21DIexiyAOR Wie 
