[ 3^5 ] 



if-- 



Achard, to be found in the Berlin Memoirs for the years 1788 

 and 1790. Of thefe I fhall tranfcribe a few, accompanying them 

 with remarks, omitting the barometrical heights, as their dif- 

 ferences, confifting only of two or three tenths of an inch, conld 

 not materially affedl the quantity of evaporation. 



The force of the wind is marked twice, namely at each period 

 of obfervation, that is at feven o'clock in the morning, and at 

 twelve o'clock. That which obtained during the remainder of 

 the day is not noted, which renders thefe obfervations incapable 

 of exad calculation, the degrees of the other inftruments and of 



evaporation 



