412 Results of Makerstoun Observations, 1844. 



TABLE VIII. — Hourly Means of the Temperature of Evaporation for each Month in 1844. 



Diurnal Ranije of the Mean Temperature of Evaporation. — -The ranges of the means, Table VIII., are iv. 

 follow : — 



Jan. Feb. March. April. May. June. July. .Aug. Sept. Oct. Nov. Dec. 



4"-8 5°-8 e'-g 8°-9 9°-3 7°-6 T'l 8°-l 7°-9 6°9 2''-7 3°-0 



TABLE IX. — Hourly Means of the Temperature of Evaporation for each Astronomical Quarter, 



and for the Year 1844. 



The ranges of the means for the astronomical quarters and for the year are 



Winter, 3''-36 Spring, 7°-00 Summer, 8°-00 Autumn, 7°-50 Year, 6°-36 



The ranges of the temperature of evaporation follow nearly the same law as the ranges of the temperature 

 of the air. The ranges for June and Jidy are less than those for April, May, August, and September. 



