Meteorological Observations at Hudson, Ohio. 269 
1841, March 17, 9 a.m. 29°320|1842, Dec. 26,9.4.m. 29-310 
© April 15, 9 a.m. *331/1843, Jan. 17, 9 a.m. 289 
* "Dec. 22,9 a.m. 272 
“ “Dee.” T3, 9 a.m. ‘A13 
1842, Jan. 23,3 P.M. ‘2951844, March 5, 9 a.m. 294 
March 12,9 a.m. ‘262 
“Nov. 29,9 a.m. ‘254 
Apel * 7, Oke 324 
«Oct. 20, noon, 267 
The following are all the instances in which the barometer has 
5. 
sunk below 28: 
1841, March 13, 9am. 98.927)1843, Jan. 31, dp p.m. 27:961 
© April 29, 34 p.m. 27-923 
“Dec. 4,6 4.m. 28°104 
“« Feb. 10, 94 p.m. 28:097 
«© March 28, 73 a.m. 27-841 
S. Dec. 10,3 2. u. ‘088 ioe. Jan. 12, 10 p.m. 28:070 
1842, Feb. 4,4 ?.m. 008 
“March 2, 3 P.M. ‘244 
thee, me tee Oe ‘221 
es ee 091 
Jan. 17, 9aim. 2150 
¢ wOct.e lay 3 Pat. 432339 
“Oot. 18; 9niw. - 24 
© Decs 22; 3 peu... +205 
1845, Jan.. 13, 9am. 218 
The entire range of the barometer for the seven years, is 1:719, 
from 27-841 to 29-560. The range of the barometer at Hudson 
is only three quarters what it is 
at the level of the sea in the 
same latitude ; that is, the barometric wave is reduced one quar- 
ter at the elevation of 1100 feet. 
It may hence be inferred that 
thé great fluctuations of the barometer are confined to the lower 
regions of the atmosphere. 
Fluctuations of the : nt, of En ‘7 inch wibin 24 
urs, 
1841, April “98, 9A. M. 
ae a , 9 AM. 
“4 Dee.’ 2, 357.m: 
. - 3, 3 °P.M. 
1842, Feb. 4,4 P.™. 
= bic 5, 9 aM. 
& 6 UB, 9. a 
s, (AG OS aes 
Nov. 29,9" a.m 
“30, 9. a.m. 
*- Dec. 28,9 a. 
ss a 9,9 aM 
Vol. xx1x, No. 2.—July-Sept. 1845. 
Barometer. Oscillation, 
28-070 ‘777 in 24 hours. 
28-899 ine 
98-164 ‘735 in 24 hours. 
28:008 ay 
98-791 ‘783 in 17 hours. 
pattem ‘728 in 24 hours. 
yi +759 in 24 hours. 
q: 
st ‘768 in 24 hours. 
35 
