IOWA ACADEMY OF SCIENCES. 



NUMBER 



OF 



OBSERVING 



DAYS. 



S ts 



3-0 



1890— August . . . 



September 



October . . . 



November 



December 

 1891— January . . 



February . 



March . . . . 



April 



May 



June 



July 



August . . . 



September 



October . . 



November. 



December . 

 1892— January. .. 



February . 



March 



April 



May 



June 



July 



August . . . 



September 



October . . 



November 



December , 

 1893— January . . 



February . 



March-. . . . 



April 



May 



June 



July 



August. . . . 



September 



October 



November. 



December . 

 1894 — January. . . 



February. . 



March .... 



April 



May 



June 



July 



August 



September 



27 

 26 

 19 

 25 

 24 

 25 

 20 

 21 

 23 

 28 

 17 

 24 

 18 

 23 

 23 

 17 

 18 

 24 

 13 

 14 

 13 

 5 

 23 

 22 

 23 

 18 

 22 

 15 

 13 

 13 

 15 

 17 

 15 

 19 

 8 

 22 

 21 

 24 

 10 

 7 

 6 

 9 

 19 

 8 

 7 

 13 

 20 

 20 

 13 

 10 



0.6 

 1.0 

 8 

 1.2 

 0.8 

 1.0 

 1.6 

 1.1 

 1.9 

 3.6 

 4 2 

 3.5 

 2.2 

 4.0 

 4.6 

 3.8 

 3.4 

 5.8 

 .vO 

 3.2 

 4.6 

 5.6 

 6.0 

 6.2 

 7.6 

 5.3 

 5.7 

 4.7 

 7.4 

 6.1 

 5.1 

 5.1 

 7.3 

 8.1 

 7.0 

 7.4 

 9.4 

 6.1 

 6.7 

 6.6 

 4.8 



7 



6 



4 



5 



6 



6.8 



7.3 



4.5 



4.7 



