WISLIZENUS — ATMOSPHERIC ELECTRICITY. 



527 



RELATIVE HUMIDITY. 



1861. .'72.2 63.3 64.5 61.5 66.3 70.8 66.3 69.6 77.3 76.6 69.0 74.3 

 18*52. . 85. 3 73.9 70.8 67.0 57.3 67.0 66.8 64.3 74.2 67.2 69.5 74.6 

 1863. . 79.2 81.7 68.1 57.2 59.4 67.7 68.6 70.7 68.2 74.4 67.4 79.5 

 1864. . 75.6 62.7 70.0 69.8 56.4 61.5 62.8 69.0 64.1 67.9 74.2 75.5 

 1865.. 74.6 72.0 66.1 66.8 62.167.9 77.4 71.7 76.8,74.1 62.3,78.8 

 1866.., 75.1 70.6 69.1 60.6 59.7 66.0 68.2 66.7 81.8 71.7,72.5 76.8 

 1867. . 76.2 73.5 75.7 59.1 61.4 64.863.9 60.0 63. 7i67.9|64. 9,77. 6 



Mean.7C.9 71.1 69.2'63.l!60.4'66.5'69.0'68.7!72.3.71-4!68.5,76.7 



69.5 

 69.8 

 70.2 

 67.4 

 70.9 

 69.9 

 67.4 



69.3 



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 observations 

 at those hours, in 1861-1867. 



ELECTRICITY. 



TEAR. 



1861.. 

 1862. . 

 1863. . 

 1864.. 

 1865.. 

 1866. . 

 1867.. 



Mean 



TEMPERATURE. 



1861 . . 

 1862. . 



18153. . 

 1864.. 

 1865. . 

 1866. . 

 1867. . 



Mean 



RELATIVE HUMIDITT. 



1861. . 

 1862. . 

 1863. . 

 1864.. 

 1865. . 

 1866.. 

 1867. . 



Mean 



65.1 

 67.6 

 66.7 

 64.0 

 68.3 

 67.4 

 64.6 



66.2 



77.3 

 78.0 

 77.9 

 74.8 

 78.9 

 77.8 

 75.4 



77.2 



