54 



ADDRESSES 



words, we believe that it probably would cost no more to make both the gen- 

 eral and detailed surveys of the entire state than to make the latter if that had 

 been undertaken first, and that by making the general survey first the farmers 

 would receive great benefit at a very much earlier date. 



Below 34 34-36 36-38 38-40 Over 40 



Scale of Shades in inches 



FIG. 15. ANNUM. PRECIPITATION. 



The average annual precipitation for the different sections of Ohio is shown 

 graphically on this chart by means of shaded areas. Lines are drawn for each dif- 

 ference of 2 inches from 34 inches to 40 inches and areas having the same precipi- 

 tation are given the same shading. The greatest precipitation is along the Ohio 

 river, and the least near the western end of Lake Erie. There is quite a large dis- 

 trict in the western portion of the state with a rainfall of less than 34 inches. 



So far as possible we propose to follow this principle in all the work 

 which we undertake, although in making the transition from our old work we 

 have already found it necessary in some cases to get the cart before the horse. 



