WISLIZENUS ATMOSPHERIC ELECTRICITY. 



[67 



A tm osfihk eric Electricicity . 



By A. Wislizenus, M.D. 



YEARLY REPORT OF ATMOSPHERIC ELECTRICITY, 

 TEMPERATURE, AND HUMIDITY, FROM OBSERVATIONS MADE 

 AT ST. LOUIS, MO. 



I. — Monthly Mean of Positive Atmospheric Electricity from 1861-1872, 

 based on daily observations at 6, 9, 12, 3, 6, and 9 o'clock, from morning 

 till night. 



ATMOSPHERIC ELECTRICITY. 



1S61. 

 IS62. 

 1863. 

 1864. 

 »§6S 



i6.5 



12 1 

 16.9 

 1S8 

 12.2 

 5 9 

 92 



8.2 

 5 ° 



1869 87 J 25 



1S70 I 8.6 10 2 



1871 ! 6 9 I 8.5 



'S72 'Q-7 j ".3 



Mean 10 6 10.0 



2. — Monthly Mean of Temperature and Relative Humidity from 1861-1872 

 based upon daily observations contemporaneous ■with those of Atmo- 

 spheric Electricity. 



TEMPERATURE, F. 



1861. 

 1862. 

 1S63. 



1S67. 

 186S. 

 1869. 

 1870 

 .871. 

 1S72. 



RELATIVE HUMIDITY. 



61 S 66 3 



67.0 57 3 



57 2 59 4 



69 8 564 



66 .8 ' 

 60 6 



I 91 



01 9 



61 



56 



5" . 

 00.7 



695 62.3 62. s 



62 

 59 7 

 61 4 



&? 



59 1 



65 7 

 72 o 



67.7 



61 5 



So" 

 64.8 

 60 7 

 693 



62 7 



"5 ' 

 70 3 



66. 



663 



66.8 



62^8 



:li 

 63 9 

 61.7 

 70 3 



02.2 



79 1 



7' 9 



76.6 



67.2 

 74 4 

 67.9 



74 -i 

 71.7 

 67.9 

 69 7 

 73-2 

 74 4 



74 i 

 74 6 



79 5 



76 8 

 77.6 



li l 



75 

 7+7 



74 o 



71.2 70.0 765 69.6 



69.4 



72 9 



