Part 40

_Wright, E._, a theory of fluxions, xiv, 330.^f ----, on the different views respecting the theory of fluxions, xvi, 53. ----, application of the fluxional ratio, and the coincidence of the several orders of fluxions with the binomial theorem, xxiv, 298^f; xxv, 93.^f ----, mathematical paper on surveying, xxii, 74.^f

_Wright, R._, meteorological observations in Columbia, 1820-1830, xxxvii, 1.

_Wright, W. H._, Treatise on mortars, noticed, xlix, 379.

Writing on a metallic surface, permanent after fusion, xxv, 197.

_Wyatt, T._, Manual of Conchology, by, noticed, xxxv, 386.

_Wyman, J._, on an anomalous substance resembling bone, xxxvi, 381. ----, on fossil bones from Georgia and Burmah, xxxvi, 385. ----, on a fœtal kitten, xxxvi, 391. ----, recent tooth of an elephant from Singapore, xxxvi, 386. ----, on the skeleton of the sloth, xxxvi, 382. ----, dissection of mackerel shark, xxxviii, 197. ----, ---- of an electrical eel, xxxviii, 197. ----, description of a tooth of a mastodon, xxxix, 53. ----, on Filaria in the lungs of a sheep, xxxix, 183. ----, on the Nantilus umbilicatus, xxxix, 185. ----, on the Otion Cuvieri, xxxix, 182. ----, notice of the howling monkey, xl, 387. ----, blind fish from a cave in Kentucky, xlv, 94. ----, microscopic structure of the teeth of the Lepidostei, and their analogies with those of the Labyrinthodonts, xlv, 359.^f

Wyoming, scenery of, iv, 4; xviii, 316. ----, coal regions of, _B. Silliman_, xviii, 308.^f ----, forts, battle ground, xviii, 317. ----, history of, xviii, 387.

X.

Xanthic oxide in guano, xlix, 200.

Xanthine, _Unger_, xlix, 391.

Xanthite, a new mineral, _W. W. Mather_, xviii, 359^f, [Idocrase.] ----, formula from the analysis, _J. J. Berzelius_, xxvi, 388.

Xanthium maculatum, memoir on, _C. S. Rafinesque_, i, 151.

Xanthogen, discovery of, vii, 377.

_Xavier, F._, death of, xxiv, 194.

Xyloidine, _H. Braconnot_, xxviii, 131.

Y.

Yale College Observatory, latitude and longitude of, xxxiv, 309. ---- ----, geological position of, vii, 20. ---- ----, Report of the Faculty on a course of liberal education, xv, 297. ---- ---- Cabinet, presents to, xxvii, 381, 382. ---- ---- Library, donation to, xxvii, 184. ---- ----, Trumbull Gallery of Paintings at, xxxix, 213.^f ---- ----, donation of shells to, xxxix, 195.

Yale Natural History Society, xxx, 187; xxxiv, 397.

Yard, English, as compared with the French metre, xxi, 382.

_Yarrell, W._, notice of the British Fishes of, xxxvii, 167. ----, on Osmerus Hebridicus, xxxv, 312. ----, notice of, xxxvii, 167.

Yeast, mode of making, vii, 378; x, 387.

Yenite, in Connecticut, viii, 59. ----, in Rhode Island, vii, 251; viii, 231.

_Yelloly_, on an acoustic instrument, xxxv, 313.

Yellow copper ore, see _Copper, sulphuret of_. ---- wood, iii, 44.

Yew tree, longevity of, xxix, 353; xxxi, 358. ---- ----, ----, _J. E. Bowman_, xxxi, 358.

Yorkshire Philosophical Society, xxi, 168. ----, Geology of, by _J. Phillips_, noticed, xxi, 1.

_Young, A._, life and character of N. Bowditch, xxxv, 1.

_Young, J. R._, Elements of Geometry, xxv, 206.

_Young, G._, antiquity of organic remains, xxxv, 308.

_Young, T._, memoir of, xxii, 232.

_Young, Dr._, cabinet of, at Edenville, N. Y., for sale, xxviii, 400; xxxvi, 393.

Yttro-cerite in Massachusetts, _E. Hitchcock_, xlv, 331; xlvii, 351, 353. ----, stated to occur in New Jersey, vi, 379.

Z.

Zabians, remarks on the idolatry and philosophy of, _J. W. Draper_, xxviii, 201.

_Zabriskie, J. B._, experiments on the induction of metallic coils, xxxii, 308.^f ----, model of an electro-magnetic engine, xxxii, 313.^f ----, construction of galvanic magnets, xxxvi, 124.^f ----, electro-magnetic rotations, xxxvi, 129.^f

Zacatecas, mines of, xxiv, 230.

Zach, Baron de, some account of, xvi, 209; xxiv, 194.

Zaffre, new mode of preparing, xxviii, 147.

Zamia, fossil fruits of, _G. A. Mantell_, xlv, 401. ----, sussexiensis, xlv, 401.

Zanesville Atheneum, cabinet of, xxv, 229; xxxi, 79. ----, coal formations, iii, 5; xxv, 228. ----, remarks on, xxv, 228.

_Zantedeschi, F._, memoirs of, on the electrotype, noticed, xliii, 390.

Zeolite, recent formation of, xx, 382.

Zeolites, order of superposition in amygdaloidal cavities, xlix, 59. ----, not usually formed at the formation of the containing rock, _J. D. Dana_, xlv, 116.

Zeolitic minerals, origin of, _J. D. Dana_, xlix, 52. ---- ----, of Bergen Hill, N. J., xl, 69; xliv, 54.^f

Zeuglodon, _R. Owen_, xxxvii, 231. ----, not a reptile, _R. Owen_, xxxix, 204. ----, geognostic position of, xxxviii, 381. ----, skeleton of, _S. B. Buckley_, xliv, 409. ----, skeleton of, obtained by A. C. Koch, xlix, 218.

Zeus crinitus, _S. L. Mitchill_, xi, 144.^f

Zinc, action of dilute sulphuric acid on, xix, 372. ---- blende, see _Blende_. ----, equivalent of, xlviii, 187. ----, separation of, from manganese, xlvii, 194; xlviii, 187. ----, as a covering for buildings, _A. Caswell_, xxxi, 248. ----, ibid, _L. D. Gale_, xxxii, 315. ----, ore of, containing iodine, xvi, 389. ----, biseleniuret of, xviii, 391. ---- and ammonia, carbonate of, xlix, 200. ---- mines of Franklin, N. Jersey, _F. Alger_, xlviii, 252.^f ----, carbonate of, or calamine in Missouri, xii, 376. ----, ----, in Michigan, xli, 185. ----, silicate of, or electric calamine in Michigan, xli, 185. ----, ----, in Virginia, xliii, 169. ---- ores of New Jersey, analyses of, ii, 319. ---- ---- ----, (Franklinite) reduction of, v, 242. ----, red oxide of, v, 242. ----, ---- ----, analysis of, _A. A. Hayes_, xlviii, 260. ----, oxide of, or Ancramite, _J. Torrey_, v, 235, 399. ----, ----, ibid, identical with cadmia and of furnace origin, vi, 180. ----, ----, at Ancram, N. Y., _J. Torrey_, v, 235. ----, sulphuret of, see _Blende_.

Zipaquera in New Grenada, salt works of, xxxii, 89.

Zircon, fusion of, ii, 292. ----, from Vermont, _C. U. Shepard_, xvii, 358.^f ---- crystals, tesselated, in New York, xlvi, 36.^f ----, of Buncombe Co., North Carolina, _C. U. Shepard_, xiii, 392.^f ----, in Connecticut, vi, 220. ----, in Maine, xviii, 297. ----, in New York, v, 30; ix, 41; xvii, 196; xxi, 325; xlvi, 36.^f ----, in North Carolina, iii, 229; iv, 192; v, 271, 401; xiii, 392.^f ----, in Pennsylvania, viii, 239; ix, 45; x, 219, 221; xiv, 5, 13, 17. ----, in Vermont, xvii, 358.^f

Zirconium, how obtained, ix, 377.

Zizia pinnatifida, xlv, 175.

Zodiac of Denderah, removed to France, v, 191; vi, 200.

Zodiacal light, (?) remarks on, xv, 62^f, 364.

Zodiacal light, observations on, _A. D. Bache_, xxvii, 335. ---- ----, ----, _D. Olmsted_, xxvii, 416; xxix, 378; xxxiii, 390. ---- ----, ----, Aug. 1840, _E. C. Herrick_, xxxix, 331; --Nov. 1842, xliv, 209. ---- ----, observations on the cause of, xlii, 395.

Zoisite, in Connecticut, ii, 240; vi, 223; xii, 161. ----, in Massachusetts, x, 18; xiv, 216. ----, in New Hampshire, viii, 235. ----, in Pennsylvania, xiv, 9, 17. ----, in Rhode Island, viii, 231. ----, in Vermont, iv, 276; vi, 223.

Zoological nomenclature, notice of the Report of the British Association on, and of the Nomenclator Zoologicus of L. Agassiz, by _A. A. Gould_, xlv, 1, 11. ---- ----, remarks on, _S. S. Haldeman_, xlvi, 18. ---- notices, on the Catskill Mountains, _J. Pierce_, vi, 86. ---- weather glass, xvii, 187. ---- writings of C. S. Rafinesque, notice of, _S. S. Haldeman_, xlii, 280.

ZOOLOGY--_Mammalia_.

Mammalia, distinctions of under jaws of, from those of Saurians, xxxvii, 229. ----, fossil, in Great Britain, xlvii, 186. ----, ---- vertebrated animals of the crag of Norfolk and Suffolk, xxxi, 339. ----, North American, _J. Richardson_ on, xxxi, 343, 356, 376. ---- of New York, number of, _J. E. DeKay_, xlv, 398. ---- and birds, in the Fulton market, N. Y., _C. Fox_, xxix, 293. ---- of Connecticut, catalogue of, _J. H. Linsley_, xliii, 345. ----, about Richmond, Indiana, catalogue of, with notes, _J. T. Plummer_, xlvi, 244. ----, fossil, from Brunswick Canal, Georgia, _R. Harlan_, xliii, 141.^f ----, ----, at Big Bone Lick, xviii, 139; xx, 370. ----, ---- remains in marl pits, Craven Co., N. C., _H. B. Croom_, xxvii, 168.

* * * * *

Arvicola ferrugineus, _R. Harlan_, x, 285. ---- riparius, note on, _J. T. Plummer_, xlvi, 247.

*Basilosaurus of Harlan, xxvii, 354; xxxvii, 231. *----, named Zygodon, _R. Harlan_, xli, 179. See beyond, _Zeuglodon_.

Bradypus tridactylus, remarks on a skeleton of, _J. Wyman_, xxxvi, 382.

*Chæropotamus, xxxvii, 231.

Crocodile, habits of, xxi, 163.

*Dicobune, xxxvii, 232.

*Dinotherium, _R. Harlan_, xli, 178.

* * * * *

[Footnote *: Fossil species are indicated by an Asterisk.]

Dipodomys Phillipsii, or Gerboa rat, from Mexico, _J. E. Gray_, xlii, 334.

Dogs, anecdote of, xlvi, 243.

*Dorudon, xlix, 216.

*Elephant of Siberia, xxvii, 353. *----, fossil, Ohio, Jackson Co., xxxiv, 358, 362.^f *----, remains of, near Bloomfield, Ohio, xxv, 256. *---- bones on the Irondiquot creek, town of Perinton, N. Y., xxxii, 377. *---- tooth, found near the shore of Lake Erie, xiv, 31. *---- bones and mylodon (?), from Oregon, _H. C. Perkins_, xlii, 136.^f *---- bones (of the mammoth) from near Behring's Straits, xvi, 382.

*Elk of Ireland, iv, 246. *----? bones in North Carolina, xxvii, 170.

Eupleres, a new genus, from Madagascar, xxxi, 192.

Felis borealis, taken in Connecticut, xxxvii, 194.

*Glyptodon, xxxvii, 232.

Haliochærus griseus, a species of seal, xxxi, 358.

Hippopotamus, new, _S. G. Morton_, xlvii, 406.^f

Horse, anecdote of, xlvi, 243.

Kangaroo, six new species of, from Australia, _Gould_, xl, 217.

Macropus frenatus, xl, 217, 218. ---- lateralis, xl, 217, 218. ---- lunatus, xl, 217, 218. ---- psilopus, xl, 218. ---- robustus, xl, 217. ---- unguifer, xl, 217, 218.

*Mastodon, notice of the tooth of, _J. Wyman_, xxxix, 53. *----, on the denial system of, xl, 377. *----, age of, xxvii, 352; xxx, 394. *----, Big Bone Lick and elsewhere, geological position of, _C. Lyell_, xlvi, 320. *----, skeleton found in excavating the Morris Canal, xiv, 188. *----, ---- found on the Delaware and Hudson Canal, xiv, 31. *----, ----, Genesee Valley Canal, New York, xxxiii, 201. *----, ----, Crawford County, Ohio, _J. W. Foster_, xxxvi, 189.^f *----, ----, Gasconade County, Missouri, xxxvi, 199. *----, ----, obtained from near St. Louis, _A. C. Koch_, xl, 56. *---- remains from near Cheshire, Ct., xiv, 187. *---- ----, Berlin, Ct., xxvii, 165. *---- ---- in New York, near Rochester, xix, 358.^f *---- ---- ----, Orange Co., xxxi, 171. *---- ---- ----, Ontario Co., xii, 380. *---- ---- in New Jersey, _J. Van Rensselaer_, xi, 246. *---- ---- in Ohio, ii, 245^f, xxv, 256; xxx, 394; xxxi, 56; xxxvi, 189.^f *---- ----, near Nashville, Tenn., xxvii, 354. *---- ----, from the river St. Francis, west of the Mississippi, i, 239. *---- ---- in Missouri, iii, 22; xxxvi, 199; xxxvii, 191. *---- ---- in Louisiana, _W. M. Carpenter_, xxxiv, 201. *---- ---- in North Carolina, xxvii, 170. *---- ---- of Wythe Co., Va., xxvii, 352. *---- longirostris in Maryland, xliii, 143.

*Megalonyx, localities of, in U. States, xxvii, 353; xlv, 209. *----, remarks on, _R. Owen_, xliv, 342.

*Megatherium in New Jersey, _R. Harlan_, xiv, 187. *---- in Georgia, xxvii, 353. *---- of Patagonia, xxxiii, 105. *----, remains of, _R. Haymond_, xlvi, 294. *----, had not a bony armor, xxxvii, 371.

Mice, habit of, xlvi, 242.

Mole, on the natural history of, xvii, 386; xxviii, 168.

Mus bursarius, _S. L. Mitchill_, iv, 183. ---- palustris, a new species, _R. Harlan_, xxxi, 385.

Mustela pusilla, _J. T. Plummer_, xlvi, 241. ---- vulpina, description of, _C. S. Rafinesque_, i, 82.

*Mylodon, _R. Harlan_, xliii, 141; xlv, 209. *---- in Georgia, xlvii, 258. *---- ? in Oregon, xlii, 136.^f *----, _R. Owen_, xliv, 341.

*Opossum in the Stonesfield slate, xxvii, 412; xxxvii, 228.

*Orycterotherium, _R. Harlan_, xlii, 392; xliv, 69^f; xlv, 210. *---- missouriense, description of, xliv, 69^f, 344; xlv, 210. *---- oregonense, ibid, xlii, 136^f; xliv, 79.

*Ovis, bones of, in Ohio, xxxi, 80, 82.^f

*Phascolatherium, _R. Owen_, xxxvii, 230.

Phocena globiceps on the American coast, xxiii, 301.^f

Pig, anecdote of, xlvi, 243.

*Pleurodon, remarks on, _R. Owen_, xliv, 342.

*Quadrumanous animal of the Sub-Himalayan range, xxxiii, 211.

Sciurus, monograph of the genus, _J. Bachman_, xxxvii, 290.

Sciurus aureogaster, xxxvii, 297. ---- capistratus, xxxvii, 291. ---- carolinensis, xxxvii, 304. ---- cinereus, xxxvii, 297. ---- Colliœi, xxxvii, 307. ---- leucotis, xxxvii, 298. ---- magnicaudatus, xxxvii, 296. ---- niger, xxxvii, 307. ---- nigrescens, xxxvii, 306. ---- sub-auratus, xxxvii, 295. ---- texianus, xxxvii, 295.

Simia seniculus, or howling monkey, some account of, xl, 387.

*Sivatherium, xxxiii, 104.

Sorex, note on two, _J. H. Linsley_, xxxix, 388. ---- brevicaudatus, _J. T. Plummer_, xlvi, 237.

Squirrels containing larvæ of Estrus, xlvi, 244.

Stenorhyncus leptonyx, a seal, remarks on, xl, 390.

*Sus americana, in Georgia, _R. Harlan_, xliii, 143.^f

*Tapir, at Darmstadt, xxvi, 218. *----, tooth of, in Louisiana, _W. C. Carpenter_, xlii, 390.^f

*Tetracaulodon, a bad genus, remarks on, xliii, 142. *----, _R. Harlan_, xlv, 210. *----, notice of, _R. Owen_, xliv, 345.

*Thylacotherium, xxxvii, 228.

Troglodytes niger, xlvii, 411.

Unicorn, on the existence of, xxi, 123.

Vespertilio pruinosus, Hoary Bat, met with in Connecticut, xxxvii, 195.

*Whale, xvii, 289. ----, suspension of respiration in, xxix, 348.

*Zeuglodon of Owen, xxxvii, 231. *----, not a reptile, _R. Owen_, xxxix, 204. *----, geognostic, position of, xxxviii, 381. *----, skeleton of, _S. B. Buckley_, xliv, 409. ---- of Alabama, obtained by A. C. Koch, xlix, 218.

ORNITHOLOGY--_Birds_.

Birds of Corfu, the Ionian Islands and Crete, number of, _H. M. Drummond_, xlvii, 186. *----, fossil, of Tilgate Forest, xxix, 362. *----, gigantic Struthoid from New Zealand, xliv, 417; xlv, 184; xlviii, 194; xlix, 219, 403. ---- sculptured in an ancient Egyptian building, _Bonomi_, xlix, 403. ---- of North America, on the migration of, _J. Bachman_, xxx, 81. ----, American, miscellaneous notices on, _J. P. Kirtland_, xl, 19. ---- of Connecticut, catalogue of, with notes, _J. H. Linsley_, xliv, 249. ----, of some North American, notes on, _C. Fox_, xxix, 291. ---- near Carlisle, Penn., list of, _W. M._ and _S. F. Baird_, xlvi, 261.

* * * * *

Corvus canadensis, _C. Fox_, xxix, 291.

Cygnus americanus, or wild swan, a new species, _J. T. Sharpless_, xxii, 83.^f

*Dinornis, _R. Owen_, xlv, 185; xlviii, 194. *----, bearing of, on the subject of fossil footprints, xlviii, 199. *----, notice of, _G. A. Mantell_, xlv, 184.

Falco leucocephalus, iv, 89.

Fringilla tristis, blue yellow bird, iv, 310.

Hirundo fulva, habits of, _T. M. Brewer_, xxxviii, 392.

Phalaropus hyperborea, _C. Fox_, xxix, 291.

ZOOLOGY--_Birds_.

Ptilonorhyncus holosericeus, habits of, _J. Gould_, xl, 218.

Scolopax pygmæa, _C. Fox_, xxix, 291.

Sparrows, number of caterpillars taken by, ix, 200.

Swallows, barn, notice of, _S. Woodruff_, xix, 172; _J. H. Steel_, xix, 356.

Turkey, wild, in the Kenawha valley, xxix, 85.

Tyrannula flaviventris and T. minima, _W. M._ and _S. F. Baird_, xlvi, 273.

HERPETOLOGY--_Reptiles_.

Reptiles, notice of R. Owen's report on fossil, xlii, 328. ----, notice of T. Hawkins's work on fossil, xxvii, 413. ----, on the geological age of fossil, _G. A. Mantell_, xxi, 359. ----, American, _A. Sager_, xxxvi, 320.^f ----, new species of, of North America, _S. L. Mitchill_, vii, 63.^f ----, notes on, _Thomas Say_, i, 256. ----, on certain North American, _D. H. Barnes_, xi, 268; xiii, 66. ----, fish and lizards, appearance of, under extraordinary circumstances, _J. E. Muse_, xvi, 41. ---- of Connecticut, catalogue of, _J. H. Linsley_, xlvi, 37.

* * * * *

Agamas, horned, _R. Harlan_, xxxi, 383.

Alligator from Manilla, capture of, with a sketch of the skull, xxxviii, 313.^f

Amphiuma, the genus, xi, 279. ---- tridactyli, xiii, 69.

*Basilosaurus, _R. Harlan_, xxvii, 354; xli, 179--see farther preceding page, _Zeuglodon_.

ZOOLOGY--_Reptiles_.

Batrachian reptiles, new, _R. Harlan_, x, 53. ---- ----, arrangement of, _D. H. Barnes_, xi, 268.

Bufo, description of genus, xi, 270. ---- vulgaris, notice of, xxxix, 188. ---- cornuta, i, 265.

Chameleon, change of color, xxviii, 79.

*Chelonia Couperi, Georgia, _R. Harlan_, xliii, 144.^f

*Chirotherium, footprints of, in sandstone, Storeton quarries, England, xxxvi, 394; xxxvii, 223. *----, in new red sandstone of Cheshire, xxxvi, 397.

Coluber fulvius, i, 262. ---- getulus, i, 260. ---- heterodon, i, 261. ---- punctatus, i, 261. ---- trivittatus, i, 260.

Crocodile, habits of, xxi, 163. *----, remains of, in New Jersey and Delaware, xvii, 289; xxvii, 353.

*Crocodilus clavirostris, in New Jersey, _S. G. Morton_, xlviii, 265.^f

Crotalus durissus, or diamond rattlesnake, notice of, _J. Peck_, xxiv, 176. ---- adamanteus, i, 263. ---- miliareus, i, 263.

Emys origonensis, _R. Harlan_, xxxi, 382.^f

*Gavial of Caen, analysis of the scales of, _A. Connell_, xxxiv, 201.

*Geosaurus, xviii, 246.

Hyla, description of genus, xi, 273; ---- crucialis, x, 64.

*Ichthyosaurus remains in United States, xxvii, 353. *----, largest, found by Miss Mary Anning, xxviii, 369.

*Iguanodon, bones of, in Mantell's museum, xxiii, 165.

*Iguanodon, discovery of, _G. A. Mantell_, xxvii, 355.^f *----, Maidstone, notice of, xxvii, 420.

Menopoma, description of genus, xi, 278.

*Mosasaurus, in United States, xvii, 289; xviii, 246; xxvii, 353.

Natrix torquata or common snake of Great Britain, incident regarding, xxxix, 186.

Ophisaurus ventralis, i, 262.

Pipa, description of genus, xi, 271.

*Plesiosaurus, xvii, 289. *----, from North of Whitby, xxix, 364.

Proteus, of the North American lakes, _S. L. Mitchill_, iv, 181; vii, 68.^f ----, generic character, vii, 67; xi, 284. ----, species of, vii, 68.^f ---- anguinus, xi, 284. ---- lateralis, xi, 285. ---- mexicanus, xi, 293. ---- tetradactylus, xi, 291.

Protonopsis horrida, xiii, 69.

Rana, description of genus, xi, 273. ---- clamata, x, 63. ---- cornuta, xi, 271. ---- flaviviridis, x, 58. ---- halecina, x, 61. ---- marina, xi, 271. ---- margaritifera, xi, 271. ---- melanota, x, 64. ---- ocellata, x, 63. ---- palustris, x, 59. ---- pipiens, x, 62. ---- scapularis, x, 59. ---- sylvatica, x, 58. ---- temporaria, xxxix, 188. ---- utricularis, x, 60.

Salamandra, description of genus, xi, 276. ---- agilis, xxxvi, 322. ---- alleganiensis, i, 263. ---- lurida, xxxvi, 323. ---- flavissima, new species, x, 286. ---- punctata, i, 264. ---- subviolacea, i, 264.

Saurocephalus, see beyond, under _Ichthyology_.

*Saurodon leanus, xviii, 246.

Scincus lateralis, xxxvi, 323.^f

Scytalus cupreus, or copper-head snake, _C. S. Rafinesque_, i, 84. ---- cupreus, i, 256.

Siren, characters of the genus, xi, 281. ---- lacertina, xi, 281; xiii, 69. ---- striata, xi, 281.

Snakes, remarks on, _S. Woodruff_, xxix, 304. ----, two headed, always monsters, facts concerning, _S. L. Mitchill_, x, 48.^f

*Tortoise, xvii, 290. ----, a new freshwater, _R. Harlan_, xxxi, 382.^f

Triton cristatus, notice of, xxxix, 189.

*Turtle, fossil, in the chalk of Kent, xli, 205.

ICHTHYOLOGY--_Fishes_.

Fishes, _L. Agassiz's_ subdivisions, xxx, 33. ----, notice of _Yarrell's_ British, xxxvii, 167. ----, transferring of salt water species to fresh waters, remarks on, xxxix, 378. ----, ---- from one pond to another, xxxvi, 342; xl, 405. ----, limits of occurrence in high latitudes, vi, 383. ---- of Massachusetts, critical review of, J. V. C. Smith on, _D. H. Storer_, xxxvi, 337. ---- of Connecticut, catalogue of, _J. H. Linsley_, xlvii, 55. ---- of New York, _DeKay's_ Report on, xlv, 275.

Fish, double, _S. Churchill_, xxvi, 116.^f ----, fossil, of the United States, identified by L. Agassiz, from fossil teeth, xxviii, 277.

ZOOLOGY--_Fishes_.

Fishes, fossil, notices of several American species, _W. C. Redfield_ and _J. H. Redfield_, xli, 24. ----, ----, in the Connecticut valley, _E. Hitchcock_, vi, 76.^f ----, ----, in Connecticut, xxvii, 354; xxxiv, 198; xxxvi, 187; xli, 24, 164. ----, ----, in Massachusetts, iii, 222, 365; xli, 24; xliii, 172. ----, ----, in New Jersey, _L. D. Gale_, xxxv, 192. ----, ----, ----, _W. C. Redfield_, xxxvi, 186; xli, 24, 164; xliv, 134; xlv, 314. ----, ----, in Pennsylvania, xlii, 233. ----, ----, in Virginia, _W. C. Redfield_, xxxiv, 201; xli, 165.

* * * * *

Alosa tyrannus, xlv, 281.

Amblyopsis, blind fish from a cave in Kentucky, _J. Wyman_, xlv, 94.

*Ameibodon, xxxvii, 233.

Amia occidentals, xlv, 281.

Anguilla tenuirostris, of DeKay, the Muræna bostoniensis of Lesueur, xlv, 282.

Baione fontinalis of DeKay, a species of Salmo, xlv, 280.

Boleosoma tesselatum of DeKay the Etheostoma Olmstedi of Storer, xlv, 276.

Brosmius vulgaris, xlv, 281.

*Catopterus, on the genus, _J. H. Redfield_, xli, 26. *---- anguilliformis, xli, 27. *---- gracilis, xli, 27. *---- macrurus, xli, 27. *---- parvulus, xli, 28.

Clupea elongata, xlv, 281.

Ctenolabrus uninotatus, xlv, 279.

Cyprinidæ of India, notice of, _D. H. Storer_, xli, 92.

Dory, new species of, _S. L. Mitchill_, xi, 144.^f

*Edaphodon, xxxvii, 233.

Exoglossum, a new genus of fish, _C. S. Rafinesque_, i, 155. ---- annulatum, i, 156. ---- vittatum, i, 156.

Fistularia tabacaria, xlv, 280.

Gasterosteus quadracus, xlv, 277.

Gunnellus mucronatus, xlv, 278.

Gymnotus, remarks on, xl, 386.

Halibut and streaked bass, dissection of the eye of, _W. C. Wallace_, xxvi, 393^f, 394.

*Holoptychus nobilissimus, Blossburg, Pa., xlii, 233.

Labeo gibbosus identical with Catostomus tuberculatus, xlv, 279.

Lactophrys camelinus, xlv, 283.

*Lamna, in a crag pit in Suffolk, England, xxxviii, 124.

Lepidostei, microscopic structure of the teeth of, _J. Wyman_, xlv, 359.^f

Lophius americanus, xlv, 278.

Lota inornata of DeKay, the L. brosmiana of Storer, xlv, 281.

Lumpus anglorum, xlv, 282.

*Megalichthys, &c., Manchester, England, xxxviii, 125.

Ophiognathus, a genus of fishes, identical with the Saccopharynx of Mitchill, xv, 358.

Osmerus viridescens, xlv, 280.

Paddle fish of the Ohio, notice of, xii, 201.^f

*Palæoniscus Agassizii, xli, 26. *---- fultus, xli, 25. *---- latus, xli, 25. *---- macropterus, xli, 25. *---- ovatus, xli, 26.

*Passalodon, xxxvii, 233.

Perca nobilis, dissection of the eye of, _W. C. Wallace_, xxvi, 394; xxvii, 216.^f

Percinæ, analogies of, with the Serraninæ, xxxix, 389.

Pileoma, genus of fish, by DeKay, identity of, with the Etheostoma of Rafinesque, xlv, 276.

Polyodon, of the Ohio, xii, 201.^f

Raja erinaceus, _S. L. Mitchill_, ix, 290.^f

Rhombus triacanthus, xlv, 278.

Salmo, remarks on the genus, _L. Agassiz_, xxviii, 76.

*Saurocephalus, of R. Harlan, xxvii, 353. *----, a fish, _R. Owen_, xxxix, 203.

*Shark, xvii, 289. *Fossil shark's teeth of New Jersey, xxviii, 378.

Spinax acanthias, xlv, 283.

Squalus, remarks on some species of, _J. E. DeKay_, xv, 359.