1910.] PUBLIC DOCUMENT — No. 31. 33 



4. Phosiilioric acid appears in these experiments to have 

 less eli'eet than either of the other fertilizers employed, though 

 it appears probable that when applied in soluble form, such as 

 acid phosphate, it will be likely to promote early ripening, and 

 will be favorable to fruit of relatively high color. 



WM. P. BROOKS, 



Director. 



