6?6 ANNUAL REPORT OF THE Ofe. Doc. 



AVERAGE COMPOSITION AND GUARANTY COMPARED— Continued. 



FaU, 1906. 

 Phosphoric add: 



Total, ._ 



Available. 



Potash, 



Nitrogen, 



Spring, 1907. 

 Phosphorio acid: 



Tot«l 



Available, 



Potash, 



Nitrogen, 



Pall, 1907. 

 Phosphoric acid: 



Total, .- 



Available, 



Potash, 



Nitrogen, 



Spring, 1908. 



Phosphoric acid: 



Total, 



Available, 



Potash, -. 



Nitrogen, 



Fall, 1908. 

 Phosphoric acid: 



Total, - 



Available, 



Potash, 



Nitrogen, 



Spring, 1909. 

 Phosphoric acid: 



Total, -. 



Available, 



Potash, ._ 



Nitrogen 



Pall, 1909. 

 Phosphoric acid: 



Total, - - 



Available, 



Nitrogen, 



Potash, - — 



Spring, 1910. 

 Phosphoric acid: 



Total — 



Available, 



Potash, 



Nitrogen, 



Fall, 1910. 

 Phosphoric acid: 



Total, — - 



Available, 



Potash, - 



Nitrogen, .- - 



Spring, 1911. 

 Phosphoric acid: 



Total - 



Available - — - 



Potash, 



Nitrogen, 



