VOLUME 18 



* NUMBER 3 



MARCH, 1915 



CONTAINING 



Atmometry and the Porous Cup Atmometer. II. 



Burton Edward Livingston 51 



Observations in the Colorado Desert 



S. B. Parish 75 



Books and Current Literature 89 



Notes and Comment 93 



PUBLISHED MONTHLY 



OFFICE OF PUBLICATION 

 2419-21 Greenmount Ave. 



BALTIMORE, MD. 



EDITORIAL OFFICE 



TUCSON, ARIZONA 



Entered as second-class matter March 9, 1912, at the post office at Baltimore, Maryland, under the Act of July 16, 1804 



