GEO 
Gay Lussac, explanation of volcanic 
action, xxxvi, 236. 
Gaylord, W., influence of the great 
lakes on our autumnal sunsets, 
XXxill, 335.f 
, mechanical vaporization of 
earths, xxxvil, 398. 
, account of a tornado in On- 
ondaga Co., N. Y., xxxvii, 90. 
, formation and dispersion of a 
thunder shower, xxxix, 54. 
» parhelia seen at Otisco, New 
York, January, 1840, xxxix, 
61.f 
, average temperature, weath- 
er and winds, for 1838 and 1839, 
at Otisco, N. Y., xxxix, 63. 
Gazlay, S., fossil wood in Ohio, 
xxv, 104. 
Gebhard, J., geology and mineral- 
ogy of Schoharie Co. eNEvionk,| 
xxviii, 172.f 
Geddes, J., geological features of 
the south side of the Ontario val- 
ley, xi, 213.f 
Gelatine from bones, i,170; xxii, 
369. 
Genesee river, account and view of 
upper falls of, xviii, 209.f 
Gems, practical remarks on, T. Ta- 
ber, xxxviil, 61. 
Geodes, facts tending to illustrate the 
formation of crystals in, viii, 
282. 
, ibid, J. D. Dana, xlix, 49. 
Geography, distribution of land and 
water, xiv, 375. 
, physical, G. F. Schoww, xxi, 
127. 
: , Influence of, on the 
boundaries of empires, J. Finch, 
xiv, 18; xvi, 99. 
Geogony of Leibnitz, xx, 56; xxxix,| 
15. 
, or on the probable origin and 
systematic arrangement of rocks, | 
W. Maelure, vii, 261. 
,»or on the formation of the 
universe, I. Orr, vi, 128.f 
Geological arrangement, outlines of, 
98 
GEO 
Geological Association, American, 
notice of meeting in 1840, xxxix, 
189 ; in 1841, xli, 158; in 1842, 
xlili, 146 ; in 1848, xlv, 135, 310; 
in 1844, xlvii, 94; in 1845, xlix, 
219: 
; > ——, address by E. 
Hitchcock, xli, 232. 
» ——, ibid, by B. Sil- 
liman, xliii, 217. 
——, ibid, by H. D. 
Rogers, xlvii, 137, 247, 
: , constitution and 
by-laws of, xlii, 149. 
——., transactions of, 
published, xlv, 220, 
coloring and symbols, system 
of, D. D. Owen, xlv, 351. 
equivalents, A. Haton, xxi, 
132. 
essays by H. H. Hayden, no- 
tice of, i, 47. 
investigations, mode of con- 
ducting, W. Buckland, iii, 249. 
nomenclature, classes of rocks, 
&c., A. Eaton, xiv, 145f, 359. 
and mineralogical observa- 
tions, A. Brongniart, iii, 216. 
paintings for class illustration, 
D. D. Owen, xlv, 136. 
poem, including geological 
cookery, v, 272. 
Prodromus, A. Katon, xvii, 63. 
reasoning, remarks on difh- 
culties that attend some of the 
modes of, xxx, 114. 
Report, of Connecticut, by C. 
U. Shepard, noticed, xxxiiil, 151. 
: , by J. G. Perct- 
Dal; XXXII, (SOO OVenlS 7s 
, of Indiana, by D. D. 
Owen, noticed, xxxiv,193; x1,133. 
, of Maine, by C. T. Jack- 
son, noticed, xxxil, 1938; xxxv, 
387; xxxvi, 143; xxxvii, 376. 
, of Maryland, by J. T. 
Ducatel, noticed, xxvii, 1; xxx, 
393 ; xxxill, 191. 
, of Massachusetts, by 
i. Hitchcock, xxii, 1£; xxi, 389 ; 
Wm. Maclure, i, 209, 
xxvl, 213; xxxvi, 363; xli, 384. 
