270 
SCIEHTIFIC DEPARTMENT. 
The state of health of the city improved considerably during the 
same period ; and though exanthematic diseases continued to prevail 
to a certaia extent, we entered with the month of April into the 
most healthy season, which is likely to continue until the hot 
summer weather begins to exhibit its trying effects on the inhabit- 
tants, which we may expect toward the latter part of May. 
ATMOSPHERIC ELECTRICITY, TEMPERATURE AND 
HUMIDITY. 
Observations made at St. Louis y Missouriy based upon daily observa- 
tions at 6, 9, 12, 3, 6 and 9 o'clochy from morning till night. By 
A. WiSLizENus, M. D., St. Louis, Mo. 
I. — Monthly Mea,n of Positive Atmospheric Electricity. 
MARCH. 
YEAR. 
.M. 
MOMH 
THUNDBE 
PREVAILING WINDS. 
1861.. 
12.0 
12.0 
9.8 
8.1 
9.0 
8.0 
9.8 
3 
W. & SE. 
1862.. 
11.8 
12.8 
9.4 
8.4 
7.0 
6.8 
9.4 
4 
W. SE. & NW. 
1863.. 
15.8 
15.5 
16.5 
10.4 
11.1 
12.3 
13.6 
2 
NW. W. NE. SE. 
1864.. 
14.2 
13.7 
11.6 
6.8 
8.3 
11.1 
11.0 
1 
SE. 
1865.. 
8.5 
9.7 
6.3 
4.4 
3.2 
3.0 
5.9 
4 
SE. W. & S. 
Mean. . 
12.5 
12.7 
10.7 
7.6 
7.7 
8.2 
9.9 
APRIL. 
1861.. 
1862.. 
1863.. 
1864.. 
1865.. 
10. 8 
10.7 
10.0 
9.1 
3.8 
11.1 
13.7 
9.9 
11.6 
4.8 
7.1 
10.6 
10.0 
6.8 
2.7 
7.0 
9.1 
6.2 
7.5 
3.3 
7.7 
9.4 
8.0 
7.8 
2.7 
9.3 
10.1 
8.6 
8.0 
2.6 
8.8 
10.6 
8.8 
8. 5 
3.3 
2 
6 
2 
3 
4 
s. <fe w. 
SE. NW. & NE. 
SE. & NW. 
NW. & SE. 
W. SE. 
Mean . 
8.9 
10.2 
7.4 
6.6 
7.1 
7.7 
8.0 
f 
i 
0 1 2 3 4 5 6 7 8 9 10 Missouri 
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cm 
