288 



TRANS. OP THE ACAD. OF SCIENCE. 



3. — Yearly Mean of positive Electricity, of Temperature, and of 

 Relative Humidity of the Atmosphere, at the hours of 6, 9, 12, 

 3, 6, and 9, from, morning till night, based upon daily observa- 

 tions at those hours, in 18G1, 1862, 1863, and 1864, at St. Louis, 

 Mo. 



ELECTRICITY. 



RELATIVE HUMIDITY. 



4. — Direction and frequency of Winds in 1861, 1862, 1863, and 

 1864, at St. Louis, Mo. 



