Barometrical observations at New York, for 1833, 1834, by _W. C. Redfield_, xxviii, 157; --for 1832 to 1837, xxxiv, 374; --for 1838, 1839, xxxviii, 325. ---- ----, at Western Reserve College, Sept.-Nov., 1838, _E. Loomis_, xxxvi, 166. ---- ----, at Hudson, Ohio, for 1838-1840, with remarks, _E. Loomis_, xli, 311. ---- ----, at Hudson, Ohio, 1841-44, _E. Loomis_, xlix, 266. ---- ----, at New Orleans, 1833-36, _Prof. Barton_, xxxi, 400. ---- ----, in Indiana, 1828, _D. D. Owen_, xxix, 294. ---- ----, at Montreal, for 1836, _J. S. M'Cord_, xxxiv, 208; --for 1837, xxxv, 382; --for 1838, xxxvi, 180. ---- ----, at St. John's, Newfoundland, 1834-38, xxxviii, 269. ---- ----, at Canton, China, 1829-38, xxxviii, 272. ---- ----, at St. Thomas, during a storm in August, 1837, xliv, 333. ---- ----, at Matanzas, 1835, _A. Mallory_, xxxi, 287. ---- ----, at San Fernando, Cuba, _J. H. Blake_, in 1840, xlii, 292. ---- ----, at sea, U. S. ship Peacock, _W. S. W. Ruschenberger_, xxxiii, 348. ---- ----, on a voyage from New York to Rio, 1834, xxix, 237. ---- ----, see farther, under _Meteorological observations_. ---- pressure, monthly maximum and minimum for the years 1833-34, at N. York, _W. C. Redfield_, xxviii, 159. ---- ----, mean and range of, at N. York, _W. C. Redfield_, xxxviii, 265, 266. ---- ----, mean and range of, at St. John's, Newfoundland, _W. C. Redfield_, xxxviii, 265, 266. ---- ----, mean of, at Montreal, for 1836-40, xli, 330. ---- ----, mean of, at Plymouth, England, xxxviii, 109. ---- ----, mean of, horary oscillation, &c., at Plymouth, England, _W. Snow Harris_, xliii, 369. ---- ----, comparison of, with pressure in India, &c., xliii, 371. ---- ----, mean of, at Perth, Scotland, xl, 342. ---- ----, mean and range of, at Malvern, in Worcestershire, xxxviii, 102. ---- ----, mean of, at Canton, China, _W. C. Redfield_, xxxviii, 267. ---- ----, mean of, in different parts of the world, _E. Loomis_, xli, 312. ---- ----, at the level of the Dead Sea, xlii, 214. ---- ----, minima of, Feb. 16-19, 1842, xlii, 403. ---- oscillations at Inverness contrasted with those at London, xliv, 158. ---- determination of heights, simple method of, _O. Byrne_, xliv, 12.^f ---- compensation of the pendulum, xlvi, 393. Barrows, Indian, see _Mounds_. _Barton, D. W._, geology of the Catskills, iv, 249.^f _Barton, Prof._, meteorological register at N. Orleans, xxxi, 400. _Bartlett, W. H. C._, experiments on the expansion and contraction of building stones by changes of temperature, xxii, 136.^f _Bartram, Wm._, notice of, _A. Gray_, xlii, 1. Baryta, test for, iv, 372. ----, distinguished from strontia by means of chromate of potash, _J. L. Smith_, xxxvi, 183. ----, native carbonate of, see _Witherite_. ----, native sulphate of, see _Heavy spar_.