Part 9

Condensation of gases, abstract of _Faraday's_ experiments on, vii, 352. ---- of sulphuretted hydrogen, vii, 352. ---- of carbonic acid, vii, 354. ---- of euchlorine, vii, 355. ---- of nitrous oxide, vii, 355. ---- of cyanogen, vii, 356. ---- of ammonia, vii, 357. ---- of muriatic acid, vii, 357. ---- of chlorine, vii, 357. ---- of gases, _J. Torrey's_ experiments on carbonic, sulphurous and chloro-chromic acids, xxxv, 374; xxxvi, 394.^f ---- ----, _J. K. Mitchell_, xxxv, 346.^f ---- ----, _Thilorier_, xxxi, 163, 402, 404.

Conduction of water, _W. W. Mather_, xiii, 368.^f ---- ----, as shown by Murray's experiments, _C. Dewey_, xxviii, 151; xxxi, 246.

Confectionary, poisonous, xviii, 157.

Conglomerate mica slate, in Massachusetts, viii, 244. ----, Potomac marble, xxvi, 221^f; xxvii, 22.

Conic sections, new instrument for drawing the curves of, xv, 368.^f ---- ----, _Prof. Benedict_, xxxi, 258.^f ---- ----, problem in, _Prof. Davies_, vi, 280.^f

Conite, a new mineral species, ii, 354.

Connecticut, on coal in, i, 239; iii, 248; v, 44^f; xxxiii, 163. ----, geology of N. Haven and Litchfield Cos., _B. Silliman_, ii, 201. ----, geology of Salisbury, _C. A. Lee_, viii, 252. ----, geology of; trap and sandstone in junction at Wallingford, _A. B. Chapin_, xxvii, 104.^f ----, ----, trap rocks, _B. Silliman_, xvii, 119. ----, ----, section from Killingly to Haddam, _W. W. Mather_, xxi, 94.^f ----, ----, report on, by _C. U. Shepard_, noticed, xxxiii, 151. ----, ----, survey of, authorized, xxviii, 381. ----, ores of, see _under names of the Metals_. ---- valley, rocks of, vii, 25. ---- ----, water courses and geology of, with account of terraces, ancient lakes, &c., xxii, 205.^f ---- ----, geological account of, _E. Hitchcock_, vi, 1^f, 201; vii, 1.^f ---- ----, vertebral remains in sandstone of, _E. Hitchcock_, xxix, 330. ---- ----, fossil footprints in, _E. Hitchcock_, xxix, 307^f; xxxi, 174; xxxii, 174; xli, 165; xlvii, 113, 292^f, 390; xlviii, 61. ---- ----, ----, ----, _J. Deane_, xlv, 178; xlvi, 73^f; xlvii, 381, 399; xlviii, 158^f; xlix, 79^f, 213.^f ---- ----, ----, ----, _C. Lyell_ on, xlv, 394. ---- ----, ----, ----, _W. C. Redfield_, xxxiii, 201. ---- Reserve, Ohio, notice of, xxxi, 21.

_Conrad, T. A._, notes on American geology, xxxv, 237. ----, on characteristic fossils, xxxv, 237, 246. ----, temperature of different geological epochs, xxxv, 239. ----, cause of the features of the U. States, xxxv, 244. ----, on the tertiary fossils of America, xxiii, 204, 339. ----, description of tertiary shells, in a paper by _J. T. Hodge_, xli, 344.^f ----, on the tertiary of the Atlantic coast, xxviii, 104, 280.^f ----, new fresh water shells of Alabama, Tennessee, &c., xxv, 338.^f ----, on the features of the transition or Silurian system, xxxv, 243. ----, on the condition and character of organic life in the transition epoch, xxxvi, 12. ----, characteristic fossils of the N. York rocks, xxxvi, 14. ----, on the Silurian strata, and the characteristic fossils, xxxviii, 86. ----, subdivision of the Silurian system in N. York, xlii, 229. ----, Calymene senaria, xlii, 230.

Conservatory at Boston, destruction of, by fire, xlvi, 214.

Continents, mean height above the sea, _Humboldt_, xlix, 397.

_Conwell, C. C._, chemical experiments on tobacco, xvii, 369. ----, on the passage of light through small apertures, xx, 350.

_Conybeare_ and _Phillips_, outlines of the geology of England and Wales, vii, 203.

Cooking apparatus of Lemare, vi, 399.

Cooling of the earth, a dynamical cause in geology, _W. W. Mather_, xlix, 288.

_Cooley, D._, floral calendar, ii, 254.

_Cooper_, report on the fossil bones of Big Bone Lick, xx, 370.

_Cooper, T._, on the tests for arsenic, iv, 155. ----, disclaimer of, with regard to a fossil described by _A. Eaton_, xx, 413. ----, on volcanoes and volcanic substances, iv, 205.

Cooper's rotative piston, xvi, 313.^f

Copaiva balsam, a new preparation of, by _G. W. Carpenter_, xvi, 40.

Copal, notice of, xliv, 212. ----, solution of, aided by camphor, xiii, 174. ---- varnish, _Berzelius_, xvii, 175.

_Copernicus_, monument to, at Warsaw, iv, 387.

Coprolites, in Connecticut valley, _E. Hitchcock_, xlvii, 113, 308.^f ---- of birds, analysis of, _S. L. Dana_, xlviii, 46.

Copper, atomic weight of, xlviii, 402. ----, amount produced in Great Britain and Ireland, for the year ending June 30, 1822, viii, 390. ----, determination of, in a binoxide salt, xlvii, 193. ----, partial reduction of the binoxide of, by heat, xlviii, 184. ----, hydride of, _A. Wurtz_, xlviii, 185. ----, silvering of, xxiii, 386. ----, metallic, galvanic formation of, in a mineral vein, xxxiv, 44. ----, protoxide of, xxii, 353. ----, white, artificial, viii, 380. ----, _Witting's_ test for, ix, 201. ----, tendency of iron to protect, when exposed to sea-water, xxv, 203.^f ----, foliaceous, of Vesuvius, xi, 267. ---- and potash, sulphate of, xx, 195. ----, native, in Connecticut, i, 55; vi, 230; xxxiii, 160. ----, ----, connection with trap in Connecticut and Michigan, xlvii, 132. ----, ----, in drift, Massachusetts, _E. Hitchcock_, xlv, 331. ----, ----, in N. Jersey, Summerville mine, v, 401; xxxvi, 107. ----, ----, ----, _L. C. Beck_, xlv, 331. ----, ----, of Michigan, _D. Houghton_, xli, 185; xlv, 331, 332. ----, ----, mass of, from Lake Superior, _H. R. Schoolcraft_, iii, 201.^f ----, ----, ----, presented to Yale College, xxvii, 381. ----, ----, and silver, of Lake Superior, _C. T. Jackson_, xlix, 81. ----, ----, in Missouri, iii, 71. ----, ----, in the trap and amygdaloidal minerals of Nova Scotia, xv, 134; xxx, 350. ----, ----, and ores of, in northern American, at the copper mountains, xvii, 8. ----, carbonate of, in Connecticut vi, 206. ----, ----, in Massachusetts, i, 115; vi, 207. ----, ----, in Michigan, xli, 185. ----, ----, in Pennsylvania, i, 236; viii, 239. ----, crenate of, analysis, _C. T. Jackson_, xxxvii, 398. ----, oxides of, in Connecticut, vi, 206. ----, ----, in Michigan, xli, 185. ----, ----, in Pennsylvania, viii, 239. ----, sulphurets of, in Canada, viii, 47, 75. ----, ----, in Connecticut, i, 316; vi, 206, 231; xxxiii, 160. ----, ----, in Massachusetts, i, 115, 136, 437; vi, 207; x, 215; xxii, 61. ----, ----, in Maryland, xviii, 80; xxvii, 20, 23. ----, ----, in Michigan, xli, 185. ----, ----, in New York, viii, 249. ----, ----, in New Jersey, ii, 192, 198; v, 268. ----, ----, in North Carolina, xli, 183, 348. (See also under _Copper mines_.) ----, phosphate of, in New Jersey, v, 401. ----, silicate, in Michigan, xli, 185. ----, siliceous hydrate in New Jersey, _G. T. Bowen_, viii, 118. ---- mines or ores in Massachusetts, account of, vi, 207; xxii, 61. ---- ----, at Strafford, Vt., xxi, 383. ---- ----, in Connecticut, at Cheshire, vi, 206;--_C. U. Shepard_, xxxiii, 160. ---- ----, ----, at Bristol, vi, 231. ---- ----, in Maryland, xxvii, 22. ---- ----, in N. Jersey, Schuyler's, v, 239. ---- ----, ----, at Summerville, v, 401. ---- ----, ores and the minerals of the vicinity of New Brunswick, N. Jersey, _L. C. Beck_, xxxvi, 107. ---- ----, on Lake Superior, _H. R. Schoolcraft_, vii, 43. ---- ----, ibid, _D. Ruggles_, xlix, 64.^f ---- ----, ibid, _C. T. Jackson_, xlix, 81. ---- ----, ibid, _D. Houghton_, xli, 183. ---- ----, of Wisconsin and Missouri, J. T. Hodge, xliii, 381. ---- ----, Nova Scotia, xv, 152. ---- ----, of the Hartz, xix, 113. ---- ----, at Ekatherinenburg, xvii, 25. ---- ----, Rio Tinto, Spain, yield of, xxviii, 144. ---- mountains, Northern America, xvii, 8. ---- ores, on the roasting of, xxix, 374;--in Sweden, xxviii, 145. ---- sheathing of ships, on the corrosion of, _H. Davy_, ix, 207. ---- ----, causes of the destructibility of, _Prideaux_, xlii, 322.

Copperas manufactured at Stratford, Vt., viii, 180; xxi, 383. ---- ---- from pyrites in Morris Co., N. J., v, 28.

Coralline agates in the West Indies, i, 141.

Corallines in chalk, xxxiii, 111; xxxix, 205.

Corals, opinion of _Quoy_ and _Gaymard_ on the depth at which they grow, xv, 357. ----, on the temperature limiting the distribution of, _J. D. Dana_, xlv, 130. ----, distribution of, indicates the areas of subsidence in the Pacific, _J. D. Dana_, xlv, 131.^f ----, fossil, see ZOOLOGY _Radiata_.

Coral islands, area of subsidence during the formation of Pacific, _J. D. Dana_, xlv, 131.^f ---- limestone in Ceylon, vi, 194. ---- shores of Florida, xxxv, 60. ---- limestone raised, in Dominica and other West Indian islands, iv, 218. ---- and shell rock of St. Croix, xxxv, 71. ---- reefs, formation of, _B. Hall_, xiv, 207.

_Corda, A. J. C._, on the impregnation of plants, xxxi, 317.^f

Cordage, on the vegetable materials used for, _J. Mease_, xxi, 27. ----, material for, from the Rose of Sharon, xxviii, 371. ----, from Manilla hemp, xli, 200.^f ----, and nets, strengthened by a solution of glue with oak bark, xxvi, 186.

_Cornelius, E._, geology, mineralogy, &c., of part of Virginia, Tennessee, Alabama, and Mississippi, i, 214, 317.^f ----, singular position of a granite rock, ii, 200.^f

_Cornuti's_ plants of Canada, ix, 265.

Corpo Santo, instances of, xvi, 171.

Corrosive sublimate, antidote of, iii, 374. ---- ----, detection of, xvii, 181; xxiii, 207. ---- ----, decomposition of, by vegetable substances, xvii, 385. ---- ----, solubility in ether, xvi, 399.

Corundum, in Connecticut, vi, 219. ----, in New Jersey, xiii, 380; xxi, 319. ----, in North Carolina, iii, 4, 229.

Cosmogony of Moses, xxv, 26. ----, Mosaic, critical interpretation of _barah_ and _asah_, _N. Webster_, xxxv, 375.

_Costa, E. M. da._, notice of, _C. Fox_, xxxvii, 155.

Cotarnine, xlix, 205.

Côteau des Prairies, _G. Catlin_, xxxviii, 138. ----, red clay or Catlinite of, _C. T. Jackson_, xxxv, 388; xxxvii, 393.

Cotton, use of, in dressing wounds, xxi, 159. ----, cloth, see _Cloth_. ----, gin, invention of, by _E. Whitney_, xxi, 209. ----, seed, illuminating gas from, _D. Olmsted_, viii, 294; x, 362. ----, plant, importance of cultivating it, iv, 86. ----, ----, remarks on the cultivation of, with reference to growing it in India, xxxviii, 131. ----, stuffs, singeing by the gas flame, x, 359. ----, trade, commencement of, in the United States, xxi, 252. ----, case of treatment by, xxiii, 198.

_Couthouy, J. P._, remarks on icebergs, xliii, 154. ----, remarks on the distribution of corals, as determined by temperature, xlvii, 123. ----, on a charge made by _J. D. Dana_, xlv, 378; xlvii, 122.

Couzeranite, description and analysis of, xvii, 183.

Cow tree of Venezuela, xix, 370.

Cowry, money, xxxii, 250.

Crag of Norfolk and Suffolk, fossil vertebrated animals of, xxxi, 339.

Craigleith quarry fossil tree, xxviii, 390.

_Cram, T. J._, length of a degree, oblateness of the earth and planets, reduction of latitude, xxxi, 222.^f

Cramp, cure for, xxx, 169.

Crania, new work on American, proposed, _S. G. Morton_, xxxii, 207. ----, ibid, review of, xxxviii, 341. ----, American, characteristics of, xlvii, 408. ----, Ægyptiaca, _S. G. Morton_, notice of, xlvii, 205. ----, ancient Egyptian, _S. G. Morton_, xlviii, 268. ----, internal capacity in different races of men, _S. G. Morton_, xxxviii, 373.

Crank motion, _A. B. Quinby_, vii, 316^f; ix, 317; xi, 338^f; xii, 124^f, 344^f; xiii, 73, 356. ---- ----, remarks in reply to _Mr. Quinby_, viii, 279; xii, 338^f; xiii, 75, 350. ---- ----, _I. Doolittle_, xii, 367; xiv, 60.^f

Crayons, red, manufacture of, xvii 187.

Crenate of copper, native, _C. T. Jackson_, xxxvii, 398.

Crenic acid, and apocrenic acid, in water, _Berzelius_, xxviii, 121.

Creosote, _M. Liebig_, xxviii, 131.

Cretaceous (ferruginous sand) fossils, U. States, _S. G. Morton_, xvii, 274, 290; xviii, 243, 250^f; xxiii, 288^f; xxiv, 128^f; xlviii, 267. ---- formation of the U. States, a division in, _S. G. Morton_, xxviii, 277. ---- ----, review of _Morton's_ Synopsis of the fossils of, xxvii, 377. ---- ---- of the U. States, _E. Hitchcock_, xli, 246, 265. ---- ---- in South America, xli, 265. ---- ---- in America, extent of, _C. G. Ehrenberg_, xlvi, 307. ---- ---- of the Upper Missouri, Nicollet, xli, 180; xlv, 153. ---- strata of New Jersey, _C. Lyell_, xlvii, 213. ---- ---- of New Jersey, (green-sand) foraminifera in, xli, 213. ---- ---- of New Jersey, fossil crocodile in, S. G. Morton, xlviii, 265.^f ---- formation in N. Jersey, list of fossils in, _S. G. Morton_, xlviii, 267. ---- period in United States, _H. D. Rogers_, xlvii, 251.

Crichtonite in Connecticut, xxxv, 179. ----, (variety Washingtonite) in Connecticut, _C. U. Shepard_, xliii, 364.^f ----, in Rhode Island, xxxv, 180.

Crinoidea, general remarks on the characters and geological position of, _J. Hall_, xlv, 349. ----, see farther, ZOOLOGY, _Radiata_.

Crocodile, fossil, in New Jersey, xvii, 289; xxvii, 353; xlviii, 265.^f

_Croom, H. B._, plants from Florida, xxv, 74. ----, botanical communications, including botany of Middle Florida, xxvi, 313. ----, new localities of plants at the South, with notes and descriptions, xxviii, 165. ----, organic remains in the marl pits of North Carolina, xxvii, 168.

Crotalus reliquus, _A. Eaton_, xx, 122.^f

_Crosse_, some account of galvanic apparatus of, xxxii, 372; xxxv, 125.^f ----, supposed production of animal life, xxxii, 374^f; xxxiii, 272. ----, production of crystals and certain insects, xxxv, 125.^f ----, Acari of, xxxii, 374^f; xxxv, 125^f; xlix, 227. ----, ----, experiments of _W. H. Weekes_ in the production of, xliii, 395.

Crucible, improved, viii, 389. ----, for glass houses, on the manufacture of, xvi, 112. ----, for fusion, xxiii, 384.

Crustaceans in Palæozoic rocks, _J. Phillips_, xlii, 326. ----, see farther under ZOOLOGY, _Articulata_.

Cryophorus, _Wollaston's_, vii, 140. ----, improved, _R. Hare_, xxxiii, 244.^f

Crystals, compound, formation of, _J. D. Dana_, xxx, 275.^f ----, drawing of figures of, _J. D. Dana_, xxxiii, 30.^f ----, models, of mica, xxxviii, 187. ----, a new fluid in, vii, 186. ----, two new fluids in, xii, 214.^f ----, naphtha in, _C. Dewey_, i, 345. ----, pseudomorphous, see _Pseudomorphous_. ----, cause of double refraction in, xxi, 299. ----, with rounded angles and bent, in New York, deductions from, _L. C. Beck_, xlvi, 333. ---- in plants, discovered by _Turpin_, xix, 177; xx, 382. ---- ----, of oxalate of lime, _Turpin_, xxi, 372. ---- ----, _J. W. Bailey_, xlv, 149; xlviii, 17.^f ---- in geodes, facts tending to illustrate the formation of, viii, 282. ---- ----, ibid, _J. D. Dana_, xlix, 52. ----, rotation of, while forming, indicating polarity, as seen under the solar microscope, _B. F. Joslin_, xxxv, 150. ---- of Andalusite from Westford, Mass., xlvi, 381.^f ---- of apatite, bent and rounded, xlv, 143; xlvi, 365.^f ---- of anatase, xlvii, 215.^f ---- of Beaumontite, xlvi, 234.^f ---- of beryl, from Haddam, viii, 395; xl, 401^f; xlvi, 381.^f ---- ----, from Monroe, Ct., bent, xlvi, 366.^f ---- of calc spar, from Rossie, N. Y., _J. D. Dana_, xlvi, 33.^f ---- of chondrodite, xlvi, 381.^f ---- of Christianite, (anorthite,) xi, 261.^f ---- of chromic oxide, xxviii, 396. ---- of Columbite, xvi, 220^f; xvii, 357^f; xxx, 387.^f ---- of Danaite, xlvi, 384.^f ---- of datholite, of Roaring Brook, _J. D. Dana_, xlvi, 380.^f ---- of epidote, from Haddam, Ct., xlvi, 381.^f ---- ----, from Franconia, _C. U. Shepard_, xviii, 129.^f ---- of eremite, _C. U. Shepard_, xxxii, 341. ---- ----, _J. D. Dana_, xxxiii, 70^f; xlv, 402.^f ---- of galena, Rossie, xlvi, 366.^f ---- of Haydenite, xlvi, 379.^f ---- of Heulandite, of Paterson and Bound Brook, N. J., _L. C. Beck_, xliv, 59.^f ---- of Humboldtilite, xi, 251.^f ---- of idocrase, from Amherst, N. H., xlvi, 381.^f ---- of iodic acid, xx, 185. ---- of iodine, xvii, 168; xviii, 84.^f ---- of iron, magnetic, distorted, _J. D. Dana_, xlvi, 365.^f ---- of Lederite, _C. U. Shepard_, xxxix, 357.^f ---- ----, _J. D. Dana_, xlvi, 36^f; xlviii, 180. ---- of ferro-silicate of manganese, from Rhode Island, _C. U. Shepard_, xvii, 142.^f ---- of microlite, _C. U. Shepard_, xxvii, 361. ---- of pyrites, Rossie, _J. D. Dana_, xlvi, 36.^f ---- of quartz, bent, xlvi, 366.^f ---- ----, soft, from Carara, Italy, v, 394. ---- ----, distorted, xlvi, 365.^f ---- ----, containing globules of water, from Elba, iv, 27. ---- ----, ibid, in U. States, ii, 14; ix, 246. ---- ----, containing naphtha, _C. Dewey_, i, 345. ---- of serpentine, of Warwick, N. Y., ix, 242. ---- of Sillimanite, xlvi, 382.^f ---- of snow, ii, 337^f; iii, 367.^f ---- of staurotide, macle, _C. T. Jackson_, xlvi, 368.^f ---- of topaz, distribution of coloring matter in, and optical properties of, vii, 364. ---- of zircon, tesselated, _J. D. Dana_, xlvi, 36.^f

Crystalline forms, two, presented by the same substance, viii, 378; xlvi, 370. ----, substances from the juice of plants, xi, 391.

Crystallization, tendency to, in matter, xix, 381. ----, on the influence of air on, _M. Graham_, xvii, 373. ---- effected by the action of weak electric forces, _M. Becquerel_, xvii, 383; xxviii, 291. ---- ---- ibid, _G. Bird_, xxxiii, 267. ---- ---- ----, _A. Crosse_, xxxv, 125.^f ----, an instance of instantaneous, _J. Green_, iii, 93. ---- of snow, _J. Green_, ii, 337.^f ----, curved, of gypsum, Mammoth Cave, Ky., _J. Locke_, xlii, 206.^f ---- the cause of the schistose structure and cleavage of some rocks, _J. D. Dana_, xlv, 105. ---- of carbonate of potash, viii, 181. ---- of the carburets, _S. Brown_, xxxviii, 118. ---- of oil of sassafras, remarkable, _A. A. Hayes_, xx, 128. ---- of water, light from, xxvi, 178.

Cuba, coal mines in, _J. H. Blake_, xlii, 388. ----, fossils of, supposed to be oolitic, _J. Lea_, xl, 41. ----, meteorological observations in, _J. H. Blake_, xlii, 292.

Culmites, vii, 180.

Cummingtonite, named and described, _C. Dewey_, viii, 59. ----, locality in Massachusetts, viii, 233; ix, 43, 54.

_Cunningham, R._, obituary notice of, xxxii, 215.

Cupellation, new method of, _W. W. Mather_, xxxv, 321. ----, a mode of, _G. Engelmann_, xlii, 394.

Currents in water, remarks on the causes of, _A. W. Carson_, xxix, 340.^f ---- ----, a fact relating to, _C. Rumker_, xx, 180. ---- ----, evidences of them over the surface of the earth, xi, 100. ----, oceanic, v, 132. ----, ----, and temperature, xxv, 130. ----, ----, from the north polar regions in the Atlantic, _Wm. C. Redfield_, xxxii, 349; xlviii, 373.^f ----, ----, ibid, ice boulders and pebbles, transported by, xxxii, 351; xlviii, 373.^f ----, ----, ibid, influence of, on the Gulf Stream, _W. C. Redfield_, xlviii, 381. ----, ----, Gulf Stream, its limits and relation to the north polar current, _W. C. Redfield_, xxxii, 349; xlviii, 381. ----, ----, of the Atlantic, iv, 390. ----, ----, ----, _W. C. Redfield_, xlv, 295. ----, ----, ----, causes of, and influence in producing the sedimentary rocks of the United States, _W. W. Mather_, xlix, 1. ----, of the Southern and Pacific oceans, xlv, 299. ----, atmospheric, see _Winds_.

_Curtis, M. A._, new and rare plants of N. Carolina, xliv, 80. ----, botanical labors of, xlii, 12.

Curves for arches, method of describing, _J. Thomson_, xxiv, 73.^f ----, of conic sections, instruments for drawing, xv, 368.^f ----, of tri-section, _W. Allen_, iv, 343.^f

Cuscutineæ, monograph of North American, _G. Engelmann_, xliii, 333^f; xlv, 73.^f

_Cutbush, J._, on the formation of cyanogen, vi, 149. ----, on the composition and properties of the Chinese fire, and on the so-called brilliant fires, vii, 118. ----, an improvement in the electrical lamp, ii, 332. ----, on the Greek fire, vi, 302.

_Cuvier, G._, essay of, on the theory of the earth, noticed, i, 68. ----, on the freshwater formations of Paris and Rome, vi, 381. ----, memoir of, by _A. De Candolle_, xxiii, 303. ----, statue of, at Montbeliard, xxx, 184.

Cuyahoga, falls of, xxxi, 45.^f

Cyanhydric acid (or prussic,) _Magendie_ on, ii, 81. ---- ----, memoir on, by _B. L. Oliver_, iii, 182. ---- ----, ----, by _M. Orfila_, xviii, 157. ---- ----, apparatus for the evolution of, _R. Hare_, xxix, 244.^f ---- ----, extraordinary production of, _A. A. Hayes_, xviii, 201. ---- ----, preservation of, xvi, 260. ---- ----, effect of muriatic and sulphuric acids on, xviii, 146. ---- ----, cases in which administered, iii, 187. ---- ----, efficacy in asthma, vi, 366. ---- ----, effects of, on a horse, xii, 385. ---- ----, effects of, on vegetation, x, 190. ---- ----, chlorine an antidote for, xvii, 174; xxi, 157.

Cyanic acid, xvi, 258.

Cyanide of gold, a new, xlviii, 191. ----, of potassium, xviii, 329. ----, ----, preparation of, _Liebig_, xlvi, 202.

Cyanobenzoyle, xxvi, 273.

Cyanogen, formation of, _Dr. Cutbush_, vi, 149. ----, perchloride of, xvi, 257. ----, compounds of, _W. H. Ellet_, xviii, 329. ----, sulphuret of, xix, 378. ----, remarks on, xlvii, 192.

Cyathocrinites pyriformis, xlviii, 314.^f

D.

_Daggett, H._, on the cutting of steel by soft iron, vi, 336.

Daguerrotype process, _Daguerre's_, xxxvii, 374; xxxviii, 97. ---- ----, improvement in, _F. A. P. Barnard_, xli, 352. ---- ---- and its applications, _W. H. Goode_, xl, 137. ---- experiment by galvanic light, _B. Silliman, Jr._ and _W. H. Goode_, xliii, 185. ---- pictures, mode of fixing, engraving, and printing from, _Dr. Berres_, xxxix, 385. ----, see farther under _Photography_.

Dahlias, notes concerning, xxiv, 208.

Daltonism, remarks on, _Prof. Wartmann_, xlii, 162.

_Dalyell, J. G._, on the propagation of Scottish Zoophytes, xxviii, 77.

Dams, vibrating, account of, _E. Loomis_, xlv, 363.^f ----, time of vibration calculated from the dimensions of, xlv, 373.

Damascus cutlery, v, 182.