270 
SCIENTIFIC department. 
The state of health of the city improved considerably during the 
same period ; and though exanthematic diseases continued to prevail 
to a certain 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 towa-d the latter part of May. 
ATMOSPHERIC ELECTRICITY, TEMPERATURE AND 
HUMIDITY. 
Observations made at St. Louis ^ Missouri, based upon daily observa- 
tions at 6, 9, 12, 3, 6 and 9 o'clocJc, from morning till night. By 
A. WiSLizENus, M. D., St. Louis, Mo. 
I. — Monthly Mean of Positive Atmospheric Electricity, 
MARCH. 
YEAR. 
6 A.M. 
MO^TH 
PBEVAILIlfa WIHDi. 
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 i 
W. SE. <fe 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. (fe 8. 
Mean.. 
12.5 
12.7 
10.7 
7.6 
7.7 
8.2 
9.9 
APRIL. 
1861.. 
10.8 
11.1 
7.1 
7.0 
7.7 
9.3 
8.8 
2 
s. & w. 
1862.. 
10.7 
13.7 
10.6 
9.1 
9.4 
10.1 
10.6 
6 
SE. NW. & NE. 
1863.. 
10.0 
9.9 
10.0 
6.2 
8.0 
8.6 
8.8 
2 
SE. & NW. 
1864.. 
9. 1 
11.6 
6.8 
7.5 
7.8 
8.0 
8.5 
3 ' 
NW. & SE. 
1865.. 
3.8 
4.8 
2.7 
3.3 
2.7 
2.6 
3.3 
4 
W. SE. 
Mean . 
8.9 
10.2 
7.4 
6.6 
7.1 
7.7 
8.0 
iiiiimi I I I I I I I I I 
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