414 



TRANS. OF THE ACAD. OP SCIENCE. 



Atmospheric Electricity. 



BY A. WISLIZENU8, M.D. 



The delayed publication of this volume allows me to add 

 to my observations of atmospheric electricity for 1861-64 

 those of 1865. 



I. — Monthly Mean of Positive Atmospheric Electricity in 1861, 

 1862, 1863, 1864 and 1865, at St. Louis, Mo., based upon daily 

 observations at 6, 9, 12, 3, 6 and 9 o'clock, from morning till 

 night. 



II. — Monthly Mean of Temperature and Relative Humidity in 1861, 

 1862, 1863, 1864 and 1865, at St. Louis. Mo., based upon daily 

 observations, contemporaneous ivith those of Atmospheric Electri- 

 city. 



TE MPERATURE. 



RELATIVE HUMIDITY, 



