Colorado Fodders. 
55 
ters soluble under these conditions is but 58.63 per cent. In the 
corn fodder we have an entirely different distribution of the proteids 
among the various extracts, over two thirds of the total digestible 
nitrogenous substances being soluble in boiling eighty per cent, al¬ 
cohol and nearh^ one-half of the nitrogen consumed is soluble in the 
same menstruum. The large amount of nitrogen, calculated as pro¬ 
teids, in the feces, soluble in sodic hydrate, points clearly, as I in¬ 
terpret it, to the presence of nitrogenous fecal matter, even in excess 
of the total amount, soluble in this reagent, present in the fodder 
consumed. This is the most marked instance, so far met with, in¬ 
dicative of the disturbing influence of fecal matter upon the results 
of our work, but it is not the only one. It seems to be almost a rule 
that the nitrogen removable by treatment with chlorin, sodic hydrate 
and sulfurous acid is greater in the feces than in the fodder con¬ 
sumed, though in this particular case it is less. The amount of nitro¬ 
gen involved in this portion, nitrogen removable by treatment with 
chlorin, etc., as well as that contained in the final residue, designated 
cellulose, and also in the portion removed by successive treatment 
with cold water, hot water and malt, is quite small and, for this rea¬ 
son, of little importance. Their frequent excess in the feces points 
to the influence of the presence of fecal matter, which differs in the 
case of different fodders. 
§134. The results of the study of the distribution of the nitro¬ 
gen in the respective extracts, as well as the distribution of the heat 
values of the extracts, indicate that the greatest differences between 
these two fodders is in the character of the two extracts obtained by 
hydric chlorid and sodic hydrate. In studying the results, it is to be 
borne in mind that there are actually a larger edible ration fed in 
the case of the alfalfa than in that of the corn fodder, because, as 
before stated, I tried to induce the sheep to consume the largest pos¬ 
sible portion of the corn fodder fed. I am quite convinced that I 
would have obtained results more favorable to the corn fodder had 
I fed them from one-third to one-half more of it and thus made it 
possible for the sheep to select the portions which they liked to a 
greater extent than they did. There was eaten 11,365 grams of dry 
matter as alfalfa, and but 8,289 grams as corn fodder. In order to 
have induced the sheep to eat the same amount of corn fodder as 
they actually did eat of alfalfa, it would probably have been neces¬ 
sary to increase the ration by one-half. I have so far purposely 
avoided comparing these fodders weight for weight. It may be well 
to do so, but very briefly. The three sheep appropriated 19,424,180 
calories from the 8,289 grams of corn fodder consumed, or 2,344 
calories per gram, while a like number of sheep appropriated 30,- 
955,663 calories from 11,365 grams of alfalfa, or 2,736 calories per 
