YEARLT REPORT OF ATMOSPHERIC ELECTRICITY, 

 TEMPERATURE, AND HUMIDITY, FROM OBSERVATIONS MADE 

 AT ST. LOUIS, MO. 



By A. Wislizenus, M.D. 



I. — Monthly Mean of Positive Atmospheric Electricity in 1S61-1S70, 



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



till night. 



ATMOSPHERIC ELECTRICITY. 



2. — Monthly Mean of Temperature ami Relative. Humidity in 1S61-1870 

 based upon daily observations contemporaneous -with those of Atmos- 

 pheric Electricity. 



TEMPERATURE. 



1S61 32.2 



1862 2S 9 



1863 36.8 



1864 29.2 



1865 28 1 



1866 322 



1S67 ! 25.4 



1S6S 26.0 



1S69 ; 39 4 



1870 33. 1 



4° I 

 30.2 



44S 

 432 

 43 6 

 40 7 

 46.7 

 42 2 

 34; 

 5i .6 

 39 9 

 4 J -3 



5S.1 64. 

 55-0 *9 7 



69 4 

 68. S 

 66.3 

 61 1 



66^6 

 7i 9 



\ < « 



6. 9 



i 75-1 

 7 1 9 



S 7S.9 : s, 



So 7 7 

 75 3 & 

 7" 9 8 

 76.9 j S! 

 74.7 8. 

 70 _> s. 



75.6 169 



50. 7 72 



m g 



78.1 i77 

 7" 8 64 

 Si. 4 ' 6S 



77 2 ,65 

 S2.1 6S 



76 3 72 



57 9 



48 o 

 53-1 

 5S.8 

 59 3 

 59 6 

 56-5 

 47 9 

 59-7 



46 o 



42 6 



43 7 



44 9 



45 o 



46 6 

 49 2 

 44 9 

 40.9 

 4SS 



31. 1 35.9 42.8:56.5 67.2 763 , Si. 4 |7S. 7 ! 69.9 '55 S j 45 5 i 34 3 



*> 



56.4 



55 2 

 56.0 

 57 5 

 56.0 



5 I S 

 56.2 



55 6 

 57-6 



56 3 



RELATIVE HUMIDITY. 



1861.. 

 1S62.. 

 1863.. 

 1864 . 

 1S65 . 

 1S66.. 

 1S67. . 



W : 

 1S70. . 



Mean 



63 3 6 4 5 



73 9 7o. S 

 81 7 68 1 

 62 . 7 1 70 o 

 72.0 66.1 

 70.6 69.1 

 73-5 i 757 

 6S.6 07.7 

 76 1 74 7 



79 

 75 

 74 



7- 

 76 



76 2 I 67 . 2 67. o , 56 . 2 j 59 

 76.3 



3 1 70s ; 66 3 69.6 



3 67.0 I 66 S 64.3 



67.7 

 % 5 

 66 o 

 64. S 

 60.7 

 69 3 

 62 7 



6S.6 70.7 



62.8 69.0 



77 4 7' 7 



6S.2 66 7 



63.9 ' 60 o 

 61 7 6i 8 

 70 3 74 2 

 62.2 73.4 



69. S 



69 9 

 70S 

 674 



70 9 

 69.2 

 67.4 

 67.1 

 73-1 



