94 
The Coeorado Experiment Station. 
gestion of the furfurol contained in the respective portions of these 
hays are very different. The furfurol removed by the hydric chlorid 
has a coefficient of 32.8 in the case of timothy hay, and 44.04 in the 
native hay; that removed by the sodic hydrate has a coefficient of 
11.54 in the timothy and 42.16 in the native hay, and that remain¬ 
ing in the cellulose has a coefficient of 50.12 per cent, in the timothy 
and 74.94 in the native hay. The furfurol in some of the other 
extracts shows higher coefficients of digestion, but owing to the 
smaller quantities concerned are of less importance. 
§224. The amount of furfurol in the cellulose is usually large. 
In the cellulose from the alfalfa, 235.7 grams; from the timothy, 
197.1 grams, and from the native hay, 219.1 grams. The alfalfa 
and native hays proved to be good fodders, the timothy hay a poor 
one. 
§225. The distribution of the furfurol in the different por¬ 
tions of the corn fodder agrees with that of the hays already men¬ 
tioned, in regard to the hydric chlorid and the sodic hydrate ex¬ 
tracts, but the cellulose shows less furfurol and it has a very much 
lower coefficient of digestion. In the case of the corn fodder, the 
hydric chlorid extract shows the largest amount of furfurol, 371.8 
grams, with a high coefficient of digestion, 66.25. The sodic hydrate 
extract consumed contained 236 grams of furfurol, coefficient of 
digestion 31.82. The next extract in importance, as indicated by 
the furfurol, was the hot water extract, in which the furfurol was 
wholly digestible. I have very strong misgivings as to the correct¬ 
ness of this determination and, for this reason, have attached but 
little importance to it; if, as I surmise, there is an error in this de¬ 
termination, it will increase the relative importance of the hydric 
chlorid extract. This corn fodder proved as efficient as the native 
hay in results obtained, i. e., a gain of 334 pounds live weight in the 
lot fed, but this lot did not consume as much dry matter by 1,811 
grams as the one receiving native hay. . The general coefficient of 
digestion obtained for the furfurol in corn fodder was found to be 
60.19 per cent., which does not agree with that obtained by taking 
the sum of the furfurol found in the different extracts, being about 
12 per cent, higher. 
§226. It will be observed that on three of these fodders, the 
respective lots of sheep gained, and on the other three the lots lost. 
I have already mentioned timothy hay as one in which the lot re¬ 
ceiving it lost in weight. The other two were sorghum and the 
saltbush, A triplex argentea. Regarding the distribution and diges¬ 
tibility of the furfurol, representative of the pentosans, we find that 
in the sorghum, the three portions, the hydric chlorid extract, the 
sodic hydrate extract and the cellulose, contain practically the whole 
of it, and that the furfurol shows the following coefficients of diges- 
