DEA 
Daubeny, C., disintegration of the 
dolomites of the Tyrol, xlu, 
321. . 
, remarks on iodine and bro- 
mine in mineral waters, xxi, 366. 
, geology of N. America, xli, 
195. 
, on the thermal springs of N. 
America, xxxvi, 88. 
, quantity of salt in seawater, 
xxxvi, 188. 
, 00 manures as stimulants to 
vegetation, xlil, 319. 
, effect of arsenic on vegeta- 
tion, xxxi, 346. 
Daubuisson’s Elements of Geology 
announced, ii, 166. 
Davenport’s rotating electro-mag- 
netic machine, xxxil, appendix 
after 216. 
electro-magnetic 
xxxill, 1938. 
Davies, C., demonstration of a prob- 
lem in conic sections, vi, 280.f 
Davyne, analysis and figure of, xi, 
255.f 
Day, possible variation in the length 
of, W. W. Mather, x\vi, 344. 
Day, G. E., on the restoration of 
the deaf and dumb to hearing, 
xxx, 301. 
Dead animals, means of employing, 
M. Payen, xxiv, 326. 
bodies, preservation of, 
307. 
Sea, observations on, ix, 349. 
, level of, xl, 218. 
, barometrical observa- 
tions made to determine the level 
of, xlii, 214. 
, account of, J. D. Sher- 
wood, xlviil, 1. 
, analysis of waters of, 
xill, 395; B. Silliman, Jr., xlviil, 
10. 
Deaf and dumb, observations on the 
language of signs for, by S. Ak- 
erly, vill, 348. — 
Deafness, cure of, ix, 204; xxx, 301. 
machine, 
1, 
—— 
65 
DEG 
Deane, J., fossil footmarks of Tur- 
ner’s falls, Mass., xlvi, 73.f 
i ——- the ornithichnites 
of the Connecticut river sand- 
stone, xlv, 178. 
in the Connecti- 
cut valley, xlvil, 381; xlviii, 
158; xlix, 213.f 
, reply to E. Hitch- 
b] 
cock, xlvii, 399 
and rain drops, xlix, 
+) 
213.f 
: , hew species of 
Batrachian, xlix, 79.f 
Dearborn, H. A. S., on the changes 
of level in the North American 
lakes, xvi, 78.f 
Deaths, monthly, among infants in 
France, xix, 192. 
, Statistics of, among the white 
troops in the West Indies, xxxvii, 
196. 
, see Obituary. 
De Candolle, A. P., biographical no- 
tice of, G. B. Emerson, xlii, 217. 
, anecdote of, iv, 388. 
, Species Plantarum announ- 
ced, 1, 435. 
Deccan, geology, &c. of, xxxiii, 274. 
Decomposition of vegetable and an- 
imal substances, most favorable 
circumstances for, xv, 182. 
Decrepitation, cause of, M. Baudri- 
mont, xxxi, 162. 
Definitions, remarks on, D. Wilkie, 
xxx, 28, 266; xxxi, 88, 236. 
Deflagrator, Hare’s, iii, 105f; iv, 
201; v, 94.f 
and calorimotor, their re- 
lations to one another, and to 
other galvanic instruments, vi, 
337. 
, its improved forms, deflagra- 
ting power, anomalous polarity, 
R. Hare, vii, 347'; viii, 99; ix, 
181. 
, galvanic, R. Hare, xl, 48. 
, improved form of, M. Fara- 
day, xxxil, 170. 
Deane, J., auroral archin Vermont,||Degradation of greenstone in the 
xxxy, 380. 
Connecticut valley, vi, 55. 
