Hygrometer II. 1894. Spring. 

 1894. March 17. Corr. = 2% (sat) on board 

 Apr. 2. 8 - (sat) 



4. -2 - (sat) - 



Hygrometers I and II, from June, 1895. 



Corr. 



1895. June 



July 



August 



Sept. 



Oct. 5. 



1896. May 17-31. 



June 



July n 



I. 



= 2-2 % 



+ 0-6 - 



+ 1-0 - 



-2-3 - 



+ 3-9 - 



+ 4-6 - 



+ 6-0 - 



+ 7-3 - 



II. 



Corr. = O'O % (ps) in screen. 

 + 21 - 

 -0-5 - - 



+ 3-1 - 



-3-5 - 



+ 0-4 - 



+ 4-3 - 



In the winter, the hygrometers were often covered with hoar-frost, and 

 it was necessary to have them thawed and cleaned. This operation did 

 not seem to affect their reading in any appreciable degree. When a hygrometer, 

 after having been cleaned, was brought out into the open air, it sometimes 

 showed too low, but soon attained its true working position, and the reading 



