158 
Analyses of Books. 
perature. This shows, what indeed was to be expected, that the hourly progress of 
the temperature will in different latitudes be very different, and require different 
curves to represent them. 
The two foliowing tables will we doubt not be deemed sufficiently interesting. 
They give great plausibility to an opinion which the author of this paper has hazard- 
ed, viz. that the daily and monthly oscillations of the barometer are referable to the 
effects of varying temperature only. The surprising correspondence in the march 
of the two instruments, exhibited by these two tables, must strike every one. It is 
rendered still more obvious in an engraving given, in which they are delineated. The 
night oscillations, which are known to occur at the same hours as the day ones, ap- 
pear, ns the author has observed in another place, to offer an objection to this theory; 
but nmy not the same explanation be here admitted as in the case of the tides of the 
ocean, which are known to occur on opposite sides of the earth at the same time, 
though the exciting cause is on one only- ? But however this be we cannot but con- 
sider the idea as exceedingly ingenious; and we recommend the subject to the study 
of meteorologists. 
TABLE I. Daily Oscillations. 
Month. 
Barometer. 
Thermometer. 
1824 
1825 
1826 
mean. 
1824 
1825 
1826 
mean. 
January, 
Inch. 
Inch. 
Inch. 
Inch. 
o 
o 
o 
,092 
,091 
,109 
,097 
19,7 
14,0 
16,1 
17,8 
February, 
,109 
,096 
,103 
,103 
21,1 
16,1 
18,8 
19,2 
March, 
,117 
,124 
,122 
,121 
19,8 
20,3 
18,6 
20> 
April, 
,127 
,113 
,135 
,125 
21,3 
25,1 
19,9 
23,2 
May, 
,120 
,113 
,140 
,121 
22,7 
23,6 
18,0 
21,9 
J une. 
,119 
,111 
,109 
,113 
24,5 
11,7 
-7,9 
16’l 
July, 
,071 
,091 
,070 
,077 
10,2 
7,7 
6,9 
9,0 
August, 
,084 
,099 
,082 
,088 
9,4 
8,6 
6,3 
8,3 
September, 
,004 
,117 
,098 
,103 
13,9 
8,5 
9,2 
10,3 
October, 
,103 
,094 
,102 
,100 
13,7 
9,7 
13^2 
18,1 
November, 
,095 
,120 
,107 
18,8 
13,3 
16,8 
December, 
,085 
,111 
,098 
17,9 
15,4 
16,3 
* ™ ontl * the register thermometer stood io a new house, much less ex- 
posed than before ; the ranges are consequently much smaller. 
TABLE 11. Monthly Oscillations. 
Month. 
Barometer at 32°. 
1823 
1824 
1825 
1826 
January, 
February, 
March, 
April, 
May, 
June, 
July, 
August, j ’ 
September, 
October, 
November, 
December, 
+ ,285 
+,233 
+,095 
—,083 
-,137 
—,307 
—,311 
— ,22/ 
—,130 
+ ,084 
+,169 
+,309 
+ ,299 
+.165 
+,106 
—,016 
—,192 
—,304 
—,327 
—,242 
—,041 
+,066 
+ ,201 
+ ,290 
+,277 
+,184 
+ ,124 
—,027 
—,104 
—,278 
—,277 
— ,163 
—,108 
+ ,036 
+,175 
+,240 
. , +J J J J J 1 +++ 
1 H 'o 'h- To 
1 1 « = s 
Therm, (mean of extremes.) 
1823 1821 1825 1826 
— 16,7 
10,7 
+ 0,5 
+ 11,2 + 
+ 
+ 
6,1 
5 , 0 | + 
4,5 + 
+ 
11,3 
18,0 
11.5 
1,3 
6,0 
11,8 
11,0 
7,8 
7.8 
6.9 
1,6 
8.5 
18,5 
17.0 
13.1 
4.3 
9.5 
15,5 
13.4 
7.6 
7.0 
5.0 
1.4 
9,2 
17.4 
— 16,5 
— 10,9 
— 0,9 
+ 10,3 
+ 12,7 
+ 11,5 
+ % 
+ 5,1 
+ 6,3 
+ 2,5 
aaauac zu.ioa. Mean I nermometric Altitude 77 81 
e volume concludes with monthly meteorological tables for the tVhole year. 
