264 PROCEEDINGS OF THE OHIO ACADEMY OF SCIENCE. 



stampede to this new Eldorado such as the days of '49 never 

 knew. 



And yet it seems clear that the rains of the growing months 

 of summer leave wealth over every acre of ground just as surely 

 as would be the case if money actually fell from the skies. To 

 be sure we cannot see the real coins, and because so little has 

 been done to measure the actual value of the rain in dollars and 

 cents we have not thought it possible to calculate its worth. 



We know, of course, that it has a value, but never have 

 thought it possible to separate this one factor from all of the 

 others that go to control the growth of vegetation and produce 

 the crop. 



We believe that this new Agricultural Meteorology when 

 properly developed will enable us to express rainfall in terms of 

 cash value instead of in inches of water, temperature in the 

 ability of the farmers to buy instead of in degrees, and sunshine 

 in the increased number of automobiles and diamond rings in- 

 stead of in calories. 



REFERENCES 



1. The Climate of Wisconsin and its Relation to Agriculture, by 

 A. R. Whitson and O. E. Baker, The University of Wisconsin Agricul- 

 tural Experiment Station Bulletin 223, July, 1912. 



2. Phenological Dates and Meteorological Data Recorded by 

 Thomas Mikesell at Wauseon, Ohio, compiled and edited by J. Warren 

 Smith, Monthly Weather Review Supplement No. 2. 



3. The Effect of Weather upon the Yield of Corn, by J. Warren 

 Smith, Monthly Weather Review, February, 1914. 



4. Correlation. J. Warren Smith, Monthly Weather Review, May, 

 1911. 



5. The Effect of Weather upon the Yield of Potatoes, by J. Wa,r- 

 ren Smith, Monthly Weather Review, May, 1915. 



