14 
N. C. AGRICULTURAL EXPERIMENT STATION. 
The albuminoid nitrogen was determined by Stutzer’s method, and the 
bile and intestinal products, as indicated in table, by extraction with 
ether, alcohol, hot water and cold lime water, a method used by the 
Maine State Experiment Station (see Report for 1888, pp. 198—203), and 
is claimed to give very satisfactory results. The difference between total 
nitrogen before and after extraction is given as fecal nitrogen not belong¬ 
ing to the undigested food residue. These differences are so small in our 
work within the error of analysis, especially when so much manipula¬ 
tion is involved, that no account was taken of them in making up the 
co-efficients. 
Notice was taken of the solid excrement for “jelly-like” substance, 
but it was observed to be remarkably free from them, which fact likely 
explains the close agreement of total nitrogen before and after extraction. 
No account was taken of the non-albuminoid nitrogen, as the amount 
was very small and the quantity of meal fed was also small. 
