FERTILIZER CONTROL STATION. 



383 



Timothy hay,* XV 



Timothy hay, XXIII 



Timothy hay, XXXIII 



Clover hay, XXIV 



Clover hay, XXXVII 



Oat straw, XXVII , 



Potatoes, raw, XXX 



Potatoes, boiled, XXXII 



Corn meal,* XX 



Corn-and-cob meal,* XXtl . . 



Corn cobs, * XXI 



Cotton-seed meal, XXXVIII 

 Cotton-seed meal, XXXV . . . 



Linseed meal, XXIX 



Linseed meal, XXXIV 



— » .^ • 

 I a .H "^ 



«- _= f-_to 



54.5 

 56.5 

 60.4 

 52. 

 56.2 

 45.6 

 94.1 

 91.9 

 82.5 

 82.5 

 2.4 

 91.5 

 91.8 

 88.8 

 89 6 



*See Report of 1885-6. Digested after keeping in the Laboratory for one year. 



Solubility of fecal nitrogen in alcoJiol, ether and water^ and in a 

 pepsin solution. These determinations were made with the dried 

 and ground feces. Two grams of the material were treated, after 

 which the undissolved nitrogen was determined. The alcohol, ether 

 and water were used ad libitum. The pepsin digestion was the 

 same as with fodders. The next table compares the results by the 

 two methods of treatment. 



