10 



BITLLKTIX 



FIG. 2. Corn where 15 tons manure had been applied per acre to Hagerstown 

 Clay Loam. Line stretched across target is at mean height of corn on the 

 plot. The two small hills in squares have received no water during sea- 

 son and have reached their development on the moisture present in the 

 soil at planting. 



FIG. 3. Corn on Hagerstown Clay Loam to which nothing was added, 

 was planted and photograph taken on same dates as for Fig. 2. 



Corn 



