BAR 2A BAR 
Barometer, new self-registering,||Barometrical observations at West- 
xlix, 400. ern Reserve College,Sept._-Nov., 
, effect of sound on, xxx, 377. 
—, directions regarding, by E. 
Mitchell, xx, 364.f 
, siphon, in determining the 
temperature of the mercury in, 
by observation, xl, 250.f 
, water, constructed in London, 
xxiv, 198. 
, remarks on, W. C. Redfield, 
xxve 129) 
, use of, atsea, W. C. Redfield, 
xxv, 198. 
, changes in the column, as 
connected with the progress of a 
storm, W. C. Redfield, xx, 45; 
xxv, 117; xxxi, 1275 xxxiii, 262. 
, variations of, W. C. Redfield, 
Xxxiil, 262. 
5 semi-diurnal,xxxiil,263. 
a , from accumulation of 
atmospheric pressure owing to 
obstacles in the course of winds, 
XXxl, 264. 
, oscillation of an extensive re- 
gion in the higher or temperate 
latitudes, xxxil, 264. 
, changes during a storm, E. 
Loomis, xl, 34. 
x ibid, J. P. Espy, xxxix, 
123. 
——, —— ibid, M.Dové, xliv, 315. 
t , remarks on, W. S. W. 
Ruschenberger, xxxiii, 345. 
, cause of the daily fluctuations 
of, Espy, xh, 42. 
, at the equator indicating time 
by its oscillations, ix, 195. 
, a substitute for, in measuring 
heights, J. Robison, xxxv, 294. 
tube, filled with mercury with- 
out using an air pump, Slevelly, 
xxxvill, 109. 
, Hudson’s series of investiga- 
tions with, xxiv, 398. 
Barometrical observations at New 
York, for 1833, 1834, by W. C. 
Redfield, xxviii, 157 ;—for 1832 
to 1837, xxxiv, 374;—for 1838, 
1839, xxxvill, 325. 
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, 3882;—for 1838, 
xxxvi, 180. 
,at St. John’s, Newfound- 
land, 1884-88, xxxvili, 269. 
, at Canton, China, 1829 
—38, xxxvill, 272. 
, at St. Thomas, during 
a storm in August,1837, xliv, 333. 
, at Matanzas, 1835, A. 
Mallory, xxxi, 287. 
, at San Fernando, Cu- 
ba, J. H. Blake, in 1840, xlii, 
292. 
, at sea, U. S. ship Pea- 
cock, W. S. W. Ruschenberger, 
xxxill, 348. 
, on a voyage from New 
York to Rio, 1834, xxix, 237. 
, see farther, under Me- 
ieorological observations. 
pressure, monthly maximum 
and minimum forthe years 1833- 
34, at N. York, W. C. Redfield, 
xxvill, 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, xxxviil, 265, 266. 
,; mean of, at Montreal, 
for 1836-40, xli, 330. 
, mean of, at Plymouth, 
England, xxxviii, 109. 
, mean of, horary oscilla- 
tion, &e., at Plymouth, England, 
W. Snow Harris, xlii, 369. 
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