of Fat in the Alimentary Canal. 



259 



0'444 gram, and of this 0*159 gram only remained as neutral fat. 

 The free fatty acids were only 0*271 gram, the percentage being no 

 less than 61*04, showing that the percentage of fat acids was greater 

 in the large intestine than either in the small intestine or in the 

 stomach. 



The soaps had fallen to only 0*014 gram, or 3*15 per cent., so that 

 they were really smaller than the quantity in the large intestine, but 

 larger than that in the stomach. 



Table V.— Weight, 6*98 kilos. Total Extirpation of the Pancreas. 

 Milk Diet forty- eight hours after Removal of the Gland, and 

 killed by means of Chloroform six hours later. 





Total ether 

 extract. 



Neutral fat. 



Tree fat 

 acids. 



Fat acids as 

 soap. 





Total. 



p. c. 



Total. 



p. c. 



Total. 



P- 



c. 



Total. 





P- 



c. 1 





8-496 



100 



7*134 



83-98 



1-352 



15 



91 



0-008 









•09 



Found in — 



























7*624 



100 



4-964 



65 -11 



2-573 



33 



•75 



0-087 





1 



•14 



Small intestine. 



0-822 



100 



0-312 



37-95 



0-452 



54 



•99 



0-058 





7 



•06 



Large intestine. 



0-251 



100 



0-082 



32 -68 



0-113 



45 



•01 



0-056 





12 



•31 



In Table V the animal was allowed to digest for six hours after 

 the feeding. In this case the total fat given was 8*496 grams, while 

 after six hours' digestion the stomach still contained 7*624 grams ; 

 hence only 872 gram of the fat had passed through the pylorus 

 into the intestines in this space of time. 



In the small and large intestines ] '073 grams were collected, so 

 that 0*201 of this must have been due to the excretion from the 

 intestinal wall or derived from the bile. 



The stomach contained only 4-964 grams of its fat as neutral fat, 

 and whereas the milk given contained 83*98 per cent, of its fat as 

 neutral fat, the stomach only contained 65*11 per cent. This was 

 due to the increase of free fat acids for the most part, but also to 

 some extent to the formation of soaps. The free fat acids present in. 

 the stomach were 2*573 grams, while the original milk only contained 

 in all 1*352 grams, therefore 33*75 per cent, of the total fat was 

 present in the stomach as free fat acids. 



The soaps also had increased in quantity. The stomach contained 

 0*087 gram, while the milk given only contained 008, the per- 

 centage of fat acids present as soaps being thus raised to 1*14. 



It is clearly brought out in this experiment that there was a very 



