80 
IOWA ACADEMY OF SCIENCE 
Total Precipitation for the Period March 1-Octoher 8, 1900 — 222 days. 
Departures from Normal Precipitations for the Crop Season 1900, March 1- 
October 8, Shaded portions show excess ( + ), and unshaded portions deficiency 
( — ) of rainfall. Figures show mean daily excess ( + ), or deficiency ( — ) of rainfall 
over an area bounded by light lines. 
