IOWA ACADEMY OF SCIENCE 



77 



TABLE No. 2 



PRECIPITATION IN INCHES 



POUND OF NITROGEN PER ACRE 



Date 



Rain 



January 1-12.... 



January 13 



January 26 



February 20 



February 22 



February 26 25 



April 5 1 



April 6 5 



April 15 25 



April 16 



April 22 25 



April 23 12 



September 22 5 



October 20 75 



November 4 



December 2 



December 9 



Total 



Snow In Albuminoid In Free Nitrates 

 Ammonia Ammonia Nitrates 



Total 



1.4986 



2.0462 



10.1684 



13.7132 



Our thanks are due Mr. Neil T. Lutes for doing the experimental work 

 of this paper. 



