George Engelmann Papers 
TEARLT REPORT OF ATMOSPHERIC ELECTRICITT, 
TEMPERATURE, AND HUMIDITY, FROM OB¬ 
SERVATIONS MADE AT ST. LOUIS, MO. 
By A. WiSLizENUs, M.D. 
[. — Monthly Mean of Positive At 7 nos;pheric Electricity in 1861-1867, 
based on daily observations at 6 , 9, 12, 3, 6, and 9 dclock, from morning 
till night. 
ATMOSPHERIC ELECTRICITY; 
-i 
'I 
TEMPERATQRE. 
