New York AaricuururaL Expermment Station. 305 
for the albuminoids of corn meal as now used are too high 
for ruminants, or whether in the trial I have reported* the 
digestibility of the albuminoids of the orchard-grass hay was 
largely modified w compounded in a ration, remains to be 
determined by future investigation. That the digestibility was 
modified to some extent I believe to be true, but not to the extent 
necessary to bring the figures of corn meal up to those usually 
given, and why this single anomaly in artificial digestion ? 
Taking the result of American digestion experiments and the 
average of my own for pepsin digestion on similar foods, we 
have the following parallels: 



DIGESTION COEFFICIENT. 


Pepsin Animal 
digestion. digestion. 
RUM AEEGLET PEI IE Cr gis tea « Urea heel binmaiids eed ar actdnine adv 6% 52 44 
MOEA ty ca Cider a Seas sinek ewe ond atn avvintels ade s diblelalale eres slelsievsin.as 57 53 to 56 
CRMC Rr hes ta sclaw tla BES Le ss avin dasa ans elles sid pee pa TB EY Va aahiden werwets 
RSET RELL ON tt Silay wie? niche ihn’ ciate s ehahties cae Reh oat sinbides suede kes B4 49 to 52 




In the above, the averages given for both timothy and clover 
by pepsin digestion, are for twenty-four samples in full bloom. 
‘The variations in digestibility of the above were as follows: 
Timothy...... Ren ert Ae Mia bY. nL ei plavanet any Mf 44 to 66 
TOV ELAM tain eha ise oe a ete Abs sear eta Ca se Wg ph BS UO 6G 

Stutzer, Jordan and others have shown that the results obtained 
in animal digestion are below the actual amount digested by the 
animal, due to biliary products, mucous matter, etc. The amount 
of this error depends upon the richness in albuminoids of the 
food under examination. Stutzer thought that a portion of the 
albuminoids of feed-stuffs was indigestible and this he called 
nuclein. This can hardly be true of all such substances and care- 
ful redigestion leads us to think that in most fodders all of the ~ 

* Report of the Society for the Promotion of Agricultural Science, 1888. 
39 
