28 
The Coeorado Experiment Station. 
TABEE XXVII. 
coeeeicients oe digestion eor the various extracts of 
TIMOTHY HAY. 
Fed. 
Total alcoholic extract. 3813.0 
Total cold water extract. ... 925.6 
Total hot water and malt ext. 3 97.8 
Total hydrochloric acid 1% 
extract . 2694.4 
Total fiOdic hydrate (1 per 
per cent.) extract. 22 70.9 
Total chlorln, etc., extract. . 76 0.6 
Total cellulose, residue, .... 3457.7 
Con- Di- 
Orts 
sumed. 
Voided. 
gested. 
Coef. 
1036.5 
1776.5 
691.4 
1085.1 
61.08 
190,5 
816.1 
121.9 
694.2 
85.08 
120.4 
277.4 
140.9 
136.5 
49.21 
884.2 
1810.2 
711.6 
1098.6 
60.69 
659.8 
1511.1 
777.9 
733.2 
E.xcess 
48.52 
383.0 
377.6 
556.5 - 
—173.9 
1218.3 
2239.3 
1307.4 
931.9 
41.61 
4492.7 
8808.2 
4307.G 
4500.6 
51.10 
for dry matter given page 29, Bulletin 
Total . 13320.0 
Avc-:rage coefficient of digestion 
No. 93, 51.03. 
TABEE XXVIII. 
COEFFICIENTS OF DIGESTION FOR THE CARBOHYDRATES IN TIMOTHY 
HAY AS INDICATED BY THE SUGARS OBTAINED 
FROM THE VARIOUS EXTRACTS. 
Fed. 
In the alcoholic extract: 
Glucose . 173.2 
Sucrose . 377.0 
In the cold water extract. 
Gums, etc. 415.6 
In the hot water and malt 
extract, (starch) . 0.0 
In the 1 per cent, hydrochlo¬ 
ric acid (Xylan) extract ...2100.6 
In the 1 per cent, sodic hydrate 
(Xylan) extract . 110.5 
Con- • Di- 
Orts 
sumed. • 
Voided. 
gested. 
Coef. 
110.5 
62.7 
0.0 
6.27 
100.00 
149.6 
227.4 
0.0 
227.4 
100.00 
86.7 
328.9 
4.3 
324.6 
98.69 
0.0 
0.0 
0.0 
0.0 
— 
667.6 
1433.0 
373.9 
1059.1 
72.23 
58.9 
51.6 
92.6 
Excess 
41.0 
§71. The furfurol in timothy hay was found to be 12.17 per 
cent, and there was accordingly 1,621.0 grams fed. The orts con¬ 
tained 11.60 per cent, equal to 521.2 grams and the feces contained 
12.73 per cent., equal to 548.4 grams. This gives us 50.12 per 
cent, for the coefficient of digestion of the furfurol. 
§72. I have used the furfurol instead of the complexes yield¬ 
ing it as we know quite certainly that there are probably several 
compounds present which may yield furfurol. Our coefficient, 
50.12, shows no more than that one-half of the furfurol has been 
digested. If the complexes from which this is derived yield the 
same amounts of furfurol and are broken down with equal read¬ 
iness, in the alimentary tract of the animal and by the distilla¬ 
tion with the twelve per cent, acid, we would be justified in assum- 
