Co/t/v wVf/rr 5ffo Cotton Lint Cotton. 
(Courtesy of Gray's Studio.) 
The diagram at the top shows the relative quantities of nitrogen, potash and 
phosphoric acid required for the production of an average yield (per acre) of corn 
wheat, seed cotton and lint cotton— strikingly illustrating the light draft on soil 
fertility when cotton seed or their equivalent are returned to the soil. The middle 
picture shows crimson clover; at the bottom we see cotton cultivation in its final 
stage. 
