R. H. Chittenden—Dehydration of Glucose. 257 
Third experiment.—A rabbit in a condition of hunger was killed, 
the stomach divided longitudinally along the curvatures, and one-half 
after being cleaned and finely divided, was placed in contact with 
0200 gram of glucose dissolved in 70 c. c. of water, and warmed at 
48°8° C. for one and one-half hours. The mixture was then heated 
to boiling with the addition of some crystals of sodium sulphate, the 
tissue and coagulated albumin filtered off and the residue washed 
with about 300 c.c. of hot water. The fluid was concentrated, 
brought to a volume of 100 ¢c.c. and then treated as in the preced- 
ing experiments. Following are the results obtained : 
STOMACH. 
a. Before treatment with sulphuric acid. 
25 c. c. gave 0°0834 gram Cu =0°0425 gram dextrose x 4=0'1700 gram dextrose. 
b. After treatment with sulphuric acid. 
25 c. ec. gave 0°0798 gram Cu =0°0407 gram dextrose x 4==0°1628 cram dextrose. 
Here, as before, there is no evidence of any change in the charac- 
ter of the glucose; still in spite of the comparatively large volume 
of wash-fluid used, the sugar was not wholly recovered. 
Fourth experiment.—A cat killed in full digestion was employed 
in this experiment. One-half of the stomach, finely divided, was 
plac 1 in contact with 0°200 gram of glucose in 75 c.c. of water. A 
portion of. the small intestine was also treated with a like amount of 
sugar, in the same manner. Both were warmed for three hours at 
48'8° C., then treated by the same method as used in the preceding 
experiments. 
STOMACH. 
a. Before treatment with sulphuric acid. 
25 ¢. ce, gave 0°0879 gram Cu =0°0449 gram dextrose x 4=0'1796 gram dextrose. 
b. After treatment with sulphuric acid. 
25 c. c. gave 0°0886 gram Cu = 0°0452 gram dextrose x 4==0°1808 gram dextrose. 
INTESTINE. 
a. Before treatment with sulphuric acid. 
25 ¢. c. gave 0°0668 gram Cu =0°0342 gram dextrose x 4=0'1368 gram dextrose, 
b. After treatment with sulphuric acid. 
25 c.c. gave 0°0684 gram Cu =0°0350 gram dextrose x 4=0'1400 gram dextrose. 
Here again, there is no evidence whatever of any change in the 
reducing power of the sugar solution. 
Pavy has also pointed out that the stomach and intestine of the 
rabbit, as well as of other animals, have a transformative action on 
saccharose as well as on dextrose. The transformative energy how- 
Trans. Conn. Acap., Vou. VII. 33 Nov., 1886. 
