418 INDEX. 
E. 
Eaton, Prof. Geological La eertiec us, | 63 
emarks S, 
Eaton i 156 coe agent Beneficence, 39 
Electrical Focus, some effects of, 3 Electricit ive of Solar Rays, 391 
Blecio-gal nic phenomena, = Encyclopedia Americana, 413 
Europe, Northern, Seeray © 
ene Edwin D. on the Peroxide of Hiyaropes 
o-silicate of manganese in Rhode Island, = 
ahr solutions in, 69, 329 Foreign Books, 201 
Foundling pe 393 
Fredonia, lighied by natural Bt 398 
French eggs and apples, 193 
a, 
Galvanic Batiery of Watkins, 1 162 Gas lights, natural ones, 398 
Gazlay, S. Rev. on the origin of Coal, 397 Gelatine, use of, 169 
Geology of Arctic — 
fo’ n of New sae 274 
Geological Prodrom sof Prof. Eaton, 63 
—_—_—— formation of an island, 197 
——_—— remarks by Prof. Eaton; 334 
ciety, gifts to, 
, elements of, 416 German collections of minerals, A400 
Gold Formation of N. Carolina, 400 0 Maryland, 202 
Greenland, Geology of, 14 Griscom, Prof. are by; 16 
Gunpowder, premature explosion of in lasting rocks, 1 
fisiteen, an on the magnetism of the on 145; 392. 
Hays, A. A. on a Portable ‘H grometer 
the preparation of the Chiorate of a 408 
Heavenly bodies, “pcan in space e motion of, 389 
Heidelberg store of m Is, 401 ‘ 
Hilsbeock, Prof. on Gernai. collections of minerals, 400 
0 tion, 
Hudson’s Bay. geology of, 11 Humboldt, poms of, 405 
Hydrophobia, cure for, 204 Hydrostatic lamp, 1 
Hygrometer, new portable one, 351 
I, 
Iceland, geology of, 1 Idocrase, new locality of, 1 
Igneous origin of some 2 Trap Rocks, 119 saan "Ine. new kind, 172, 371 
I Is, Lieut. on a luminous appearance of t : 
ine, crystallization of, 168 Ioduret of ( Calelats and Potassium, 177 
Ipec’ a, analysis 
fron, ‘isthe, crystallized, 140 
K. 
-Kamschatka, geological notices of, 30 
L: 
, Hydrostatic 161 Lead in oil of vitriol, test for, 195 
bites, 392 Leeches, death of bee a! storms, 186 
1 b 
: of Use 
tien eee 
unit, 1 
Know , All 
ful Knowledge, rary of Entertaini 
al action of, 376 Lightning, effects of at Chics 1 
principles of, 86 
fs 165 é is 
Lyceumsin New England, 415 
