GIG 
Geysers, remarks on, G. Bischof, 
XXXVi, 295. 
of Iceland, siliceous concre- 
tions from, xxxi, 167; xxxii, 
196. 
Gibbes, L. R., on the resistance of 
fluids, xxvii, 135. 
Gibbon, J. H., visit to the salt 
works of Zipaquera, xxxil, 89. 
Gibbs, G., on the dry rot, ii, 114. 
-——, method of augmenting the 
force of gunpowder, i, 87. 
» connexion between magne- 
tism and light, 1, 89. 
, on the tourmalines and other 
minerals of Chesterfield, Mass., 
i, 346. 
, mineral cabinet of, at Yale 
College, ii, 169. 
Gibbs, J. W., characteristics of 
some African dialects, xxxviil, 
41; xxxix, 255. 
— —, contributions to English lex- 
icography, xxxili, 324; xli, 28. 
, ibid, origin of the names of, 
beasts, birds and insects, xli, 
32. 
, on the adverbial genitive cas 
in English, xlv, 96. 
, on Greek conjugations, xxxvil,| 
112: 
, table of Greek correlatives,| 
XXXIV, 337. 
, on Greek verbal roots in 
English, xlv, 284. 
, on the orthography of Hebrew 
words in the Roman character, 
xxiv, 87. 
Gibbs, O. W., new form of magneto- 
electric machine, and account of, 
a carbon battery, xxxix, 132 
, on a natural system of chemi- 
cal classification, xlix, 384. 
Gibbsite in Massachusetts, ili, 239, 
(called Wavellite); v, 269; vi,| 
247, 364; vill, 52. 
in New York, xl, 75. 
Gibson, J. B., on the geology of 
108 
GLA 
Gilding by electrography, xli, 402. 
Gin, loss of memory from the use 
of, xxvi, 211. 
Girard, P. S., on navigable canals, 
iv, 102; vii, 286. 
Girardin, analysis of guano, xlviii, 
181. 
Glaciers and boulders in Switzer- 
land, L. Agassiz, xli, 59, 190. 
in Switzerland, extent of, xlii, 
357. 
-of the Alps, account of, J. D. 
Forbes, xvi, 173. 
in Scotland, former existence 
of, xl; DON: 
, a week among, H. A. Grant, 
xlvi, 281. 
Glacier theory of L. Agassiz, xlii, 
346.f 
, remarks on, E. Hitch- 
cock, xliii, 396. 
of drift, E. Hitchcock, 
xlv, 324. 
, remarks on, H. 
D. Rogers, x\vii, 268. 
Glasgow, supply of water to, ili, 
372. 
Glass, manufacture of, iil, 370. 
; JASN. -Fenn,.--xvis 
112.f 
from burning hay, xix, 395; 
xxiv, 174. 
, blowing of, xxiv, 380. 
, cloth of, xxxix, 386. 
, ductility of, vill, 392. 
——, on the decomposition of, D. 
Brewster, x\, 324. 
——, decay of an object-, xxviii, 
69. 
—— decomposed, rings of polariz- 
ed light produced in specimens 
of, D. Brewster, xl. 325. 
——, dividing of, by friction, R. 
Hare, xiii, '7.f 
, Guinand’s flint, ix, 380. 
, Opaline, cause of color of, 
xxvi, 66. 
—— for optical purposes, manufac- 
the lakes and the valley of the 
Mississippi, xxix, 201. 
Gigantolite, analysis of, xlii, 387. 
ture of, A. Bourne, xl, 207. 
, porosity of, vii, 192. 
,» spectacle, xxvii, 80. 
