390 



Esox estor, 305, 306. 



lucioides, 306. 



liicius, 173, 305. 



nobilior, 305,306. 



Ether, efiects of, 133. 

 hj'po-nitrous, 13. 



Fisheries of Bay of Fundy, 374. 

 Fishes of Labrador, 327. 



of Lake Superior, 61, 80. 



from Mammoth Cave, 349. ^ 



disease of, 173.j»t. 



Flexible Sandstone, 149. 

 Flustra truneata, 66. 

 Fogs, theory of, 127. 

 Fontaines, 288. 

 Fossil foot-marlcs, 202, 227. 



rain-drops, 200, 



teeth of fishes, 246. >^ 



vegetation of anthracite. 8, 35, 261. 



Fossils from Himalaya Mountains, 314, 



350, 356, 369. 

 Fossils from Memphis, 280. 



from Richmond, 323. 



Frankiinite, .321. 

 Fresh-w^ater Planarise, 264. 

 Fusus crispzis, 141. 



Jidiczda, 141. 



incisus, 141. 



liratus, 141. 



orpheus, 142. 



sicblutics, 142. 



Gay, Dr. Martin, death of, 230 



Gelidium 2i7tilaterale, 373. 



Gigartina exasperata, 371. 



mollis, 372. 



Gills of Crustacea, 225. 



GiRARD, Charles. On the genus Cot- 

 tus, 183, 302. — On the Biogen liquid, 

 239. — On marine PlanaritE, 251, 264, 

 363. — On Planocera elliptica, 348. 



Glaciers, structure of, 122, 125. 



Glandina bullata, 64. 



Gold, of California, long known, 287. 



crystals, from California, 266,280. 



in Vermont, 382. 



Goniometer, reflecting, 78. 



Gould, A. A. On shells from the South- 

 western States, 37. — Descriptions of 

 new shells, 64. — On shells of United 

 States Exploring Expedition, 73, 83, 

 89. 106, 118, 140, 151, 169,214,252, 

 276, 292, 309, 343. — On shells from 

 Africa, 193. 



Gracilaria^/A/br^w, 372. 



Green sand, origin of, 248. 



of England, 256. 



Gun-cotton, 30. 



Gymnogongrus dendroides, 372. 



Hsematin, crystals of, 313. 

 Hfematorhoea, 191. 



Haematozoa, 168. 

 Harmotome, 105. 

 Harvey, W. H. New species of Algse, 



.370. 

 Helieckimis, gen. 364. 



Gouldii, 365. 



Helix abjecta, 40, 



buccidenta, 40. 



cerea, 194. 



exigua, 175. 



hortensis, 181. 



• indecorata, 194. 



leporina, 39. 



maxdlata, 38. 



rotjda, 38. 



sele?iina, 38. 



ialcosa, 194. 



vzdtziosa, 39. 



Hibernation of insects, 68. 

 Himalaya fossils, 314, 350, 356, 369. 

 Humble-l)ee, generation of, 263. 

 Hydra, 354. 

 Hydroidian Polyps, 65. 

 Hylodes Pickeringii, 63. 

 Hypriea Coidteri, 371. 



Ibis gnarauna, 313, 332. 



Ordi, 355. 



Icebergs, crushing action of, 226. 

 Iguanodon, 46. 

 Indian corn, 198. 

 Infusorial deposits, 16. 

 Iron, analyses of, 233. 



of Lake Superior, 211. 



smelting of, 229. 



Ixodes, 335. 



Jackson, C. T. On gun-cotton, 30. 

 Analysis of Vermiculite,243 — On As- 

 phallum, 279. — Analysis of Tellurium 

 ore, 297. — On the age of the Sand- 

 stones of the United States, 337. 



Jacksonite, 5, 247. 



Jet of water, in Cetaceans, 228. 



Kneeland, S., Jr. On the Hindoo 

 skull, 212.— On Putorius barbatus, 238. 



Labrador, geology of, 182. 



Lacuna carinata, 75. 



Lake Superior, survey of, 210. 



Laomedea dichotoma, 66. 



Laurentian deposits, 358. 



Lazulite, 2-50. 



Legs of Crustacea, 225. 



Lepidoptera, metamorphoses of, 199. 



Lepisosteus, 182. 



Lepralia variolosa, 66. 



Letters, from 

 Binney, Mrs. 44. 

 Davis, J. S. 301. 

 Delessert, Francis, 328. 

 East India Company, 314. 

 Gilman, Prof. 87. 



