INDEX TO VOLUME XXXIIl. 
A. 
Academy of Natural Sciences of Phil- 
adelphia, catalogue of the library of, 
181. 
Afzelius, Prof. Adam, decease of, 211. 
Air pump, new, description of, 237. 
Alembic for distilling amalgam of gold, 
66. 
Andrews, Arza, on a solvent of caout- 
chouc, 400. 
Animal magnetism, 184. 
Animation, suspended, 292. 
Apparatus and experiments,electro-mag- 
netic, 190. 
Argas Persicus, 271. 
Arkansaw, hot springs of, 202. 
Atmosphere, general view of, 50. 
stratification and elevation 
of the currents of, 52. 
Atmospheric currents, circuitous char- 
acter of, 61. 
August meteoric shower, characteristics 
of, 359. 
Aurora borealis in summer, 297. 
— of July 1, 1837, 143. 
notice of, 212. 
B. 
Barometer, remarks on, 345. 
variations of, 262. 
Barometrical observations, 310, 320. 
Bones of the mammoth, 201. 
Boston Journal of Natural History, 180. 
Boulders, river, wear of, 315. 
Breezes, land and sea, 65. 
British Association for the advancement 
of science, 194. 
—— seventh meeting of, 
265. 
Buckland’s Bridgewater treatise, 112. 
C. 
Calymene Rowii, 406. 
Caoutchouc, solvent of, 400. 
Chemistry, technical, elements of, 204. 
Chester County, Pa., flowering and fili- 
coid plants of, 183. 
Cistern, hydro-pneumatic, 246. 
Clarke, E. M., description of a magnetic 
electrical machine, 213. 
peter, 224. 
— description of the ea 
Clouds, fogs and rain, 54. 
Collapse of a reservoir, cause of, 242. 
Combustion, spontaneous, 147, 199, 200. 
Connecticut, notice of Prof. Shepard’s 
' report on the geological survey of, 151. 
Copper, in Connecticut, 160. 
Count Rumford, sketch of the early his- 
tory of, 21. 
Cryophorus, improved, 244. 
Crystals, on the drawing of figures of, 30. 
Culinary paradox, 248. 
Currents of the atmosphere, stratifica- 
tion and elevation of, 52. 
D. 
Dana, J. D., crystallographic examina- 
tion of eremite, 70. 
on the drawing of figures of 
erystals, 30. 
Darlington’s Flora Cestrica, 183. 
aes electro-magnetic machine, 
Dean, James, notice of an aurora, 212. 
Deccan, statistics of, 274. 
Desert between Suez and Cairo, geology 
of, 288. 
Deserts, 261. 
Dewey, C., on the aurora borealis of 
July 1, 1837, 143. 
-———_——— on the bones of the mam- 
moth, 201. 
—— on the rocks of New York, 
121. 
—— on the temperature of Lake 
Ontario, 403. 
E. 
Ebullition by cold, 248.’ 
Edwardsite, measurement of, 202. 
Electrepeter, E. M. Clarke’s, description 
of, 224. 
—————. new form of, 377. 
Electrical excitement, extraordinary case 
of, 394. 
Electro-magnetic apparatus and experi- 
ments, 190. 
— instrument, revolving, 
188. 
193. 
— machine, Davenport’s, 
— telegraph, Morse’s,185. 
Electro-magnetism, as a moving power, 
118. 
