BULLETIN "!;.'' 





FIG. 6. Corn en Miami Loam where 15 tons of manure had heen applied per 

 acre. Corn was planted and photographed on same dates as for Fig. 2. 



FIG. 7. Corn on Miami Loam to which nothing had been added. Corn 

 planted and photographed on same dates as for Fig. 2. 



