Cc mA 
Cutbush, J., on the formation of 
cyanogen, vi, 149. 
, on the composition and prop- 
erties of the Chinese fire, and on 
the so-called brilliant fires, vii, 
118. 
, an improvement in the elec- 
trical lamp, 11, 332. 
, on the Greek fire, vi, 302. 
Cuvier, G., essay of, on the theory of 
the earth, noticed, 1, 68. 
, on the freshwater formations 
of Paris and Rome, vi, 381. 
, memoir of, by A. De Candolle, 
xxili, 303. 
, statue of, at Montbeliard, xxx, 
184. 
Cuyahoga, falls of, xxxi, 45.f 
Cyanhydric acid (or prussic,) Ma- 
gendie on, il, 81. 
, memoir on, by B. L. 
Oliver, ii, 182. 
,—, by M. Orfila, 
Xviilj 157: » > 
, apparatus for the evo- 
lution of, R. Hare, xxix, 2444 
, extraordinary produc- 
tion of, A. A. Hayes, xviii, 201. 
» preservation of, xvi, 
260. 
, effect of muriatic and 
sulphuric acids on, xviii, 146. 
, cases in which admin- 
istered, ui, 187. 
, efficacy in asthma, vi, 
366. 
——, effects of, on a horse, 
Xil, 885. 
——, effects of, on vegeta- 
tion, x, 190. 
——, chlorine an antidote for, 
xvil, 174; xxi, 157. 
Cyanie acid, xvi, 258. 
Cyanide of gold, a new, xlviii, 
a 1 
of potassium, xviii, 329. 
——, preparation of, Liebig, 
xlvi, 202. 
Cyanobenzoyle, xxvi, 273. 
Cyanogen, formation of, Dr. Cut- 
bush, vi, 149. 
63 
DAN 
Cyanogen, perchloride of, xvi, 257. 
——, compounds of, W. H. Ellet, 
XVill, 329. 
——, sulphuret of, xix, 378. 
, remarks on, xlvii, 192. 
Cyathocrinites pyriformis, 
xlviii, 
314. 
D. 
Daggett, H., on the cutting of steel 
by soft iron, vi, 336. 
Daguerrotype process, Daguerre’s, 
XXxvil, 874; xxxvill, 97. 
, improvement in, F. A. 
P. Barnard, xii, 352. 
and its applications, W. 
H. Goode, xl|, 137. 
experiment by galvanic light, 
B. Silliman, Jr. and 
Goode, xliii, 185. 
pictures, mode of fixing, en- 
graving, and printing from, Dr. 
Berres, xxxix, 385. 
, see farther under Photogra- 
phy. 
Dahlias, notes concerning, xxiv,208. 
Daltonism, remarks on, Prof. Wart- 
mann, x\il, 162. 
Dalyell, J. G., on the propagation of 
Scottish Zoophytes, xxviii, 77. 
Dams, vibrating, account of, £. 
Loomis, xlv, 363.f 
, time of vibration calculated 
from the dimensions of, xlv, 373. 
Damascus cutlery, v, 182. 
Dana, J. D., description of the Ar- 
gulus Catostomi, xxxi, 297.f 
,—— of the Caligus Ameri- 
canus, xxxiv, 225.f 
3 of two species of Hy- 
drachna, xxx, 354.f 
, metamorphosis of Anatife, 
and their relation to Crustacea, 
xlv, 335. 
, classification of minerals, 
xlvi, 374. 
, drawing of figures of crys- 
tals, xxiii, 30.f 
, crystallographic 
xXxvill, 250. 
symbols, 
