ANNUAL MEETING OHIO STATE BOARD OF AGRICULTURE. 4S 



turn for information. In other words, we became convinced that, on the 

 basis of experiments made on any given farm we positively can not predict 

 with certainty as to what will happen on another farm regarding many things, 

 especially those related to plant growth, unless we know that the soil, cli- 

 mate and other conditions limiting or promoting plant growth, are similar 

 on the two farms. 



"Z.j Map of Ohio 



M\ Show.ny 



Production of Oats 

 bu Townships in 



Compiled from Records 



Ohio State Board of /fyncultUi 

 Scale = 3000 bu. 



FIG. 6. 



AN AGRICULTURAL SURVEY. 



Doubtless with this conviction in mind Director Thome decided that a 

 beginning should be made at once toward the execution of his long-cherish- 

 ed plan the making of an agricultural survey of the state of Ohio, and, since 

 the Department of Cooperation had men who were trained in field work 

 and who were interested in this very problem, that that Department should 

 be placed in charge of the work. This decision was made in the spring of 



