SHELDON: KOEBERLINIA SPINOSA. 



107 



RAINFALL OF TUCSON VICINITY. 



January .. 

 February . 

 Mai-ch . . . 

 April. . . . 



May 



June 



July 



August . . . 

 September 

 October . . 

 November 

 December . 



Totals 



* To August 2. 



8.20 



23.31 



11.10 



13.72 



9.42 



From July 5 to July 31 there were twelve days upon which rain fell. There was rain 

 during one day of each of the months of April, May and June. (These statements apply 

 only to the year 1908.) 



WEEKLY AVERAGES OF EVAPORATION, 

 In cubic centimeters, from free .surfaces at a height of 25 centimeters above the ground. 



June. 



July. 



Tuscon 



St. Louis 



Lincoln 



Chicago 



New York 



Temperatures, July 5, 1908, to August 2, 



August. September. 



1908 



