Missouri Botanical 
GARDEff 
George engelmann Papers 
WISLIZENUS—ATMOSPHERIC ELECTRICITY. 117 
VI. Thev appearance of negative electricity was connected in 
1861. 
1862. 
No. times. 
No. times. 
30 
.32 
with thunderstorms. 
23 
28 
with rains without thunder and lightning, 
with dry storms (without rain and without thun¬ 
der and lightning). 
20 
4 
. 4 
3 
with snow. 
_ } 
0 
with fog. 
;;'t8 - 
1 67 
VII. Relation of Rain 
Rain without thunderstorm 
and Snow to Electricity . 
was accompanied 
By Positive Electri¬ 
city. 
By Negative Electri- 
By no Electricity. 
In 1861. 1 In 1862. 
In 1861. I In 1862. 
In 1861. | In 1862. 
- 
1 o 
7 8 9 10 Missouri 
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