NO. 17.] 



RELATIVE HUMIDITY. 



505 



THE RELATIVE HUMIDITY. 



THE DIURNAL PERIOD. 



The following Table gives the mean computed values of the relative 

 humidity for each observation-hour and for each month of the drift of the 

 Fram, and the means for each month. 



From October, 1893, to March, 1894, we have observations for every 

 fourth hour, from April, 1894, to July 19 th , 1896, for every two hours, and 

 from July 20 th to August 19 th , 1896, for every fourth hour. 



64 



