182 



Dr. V. Harley. Some of the Effects and [June 15, 



From this it was seen that the quantity of sugar goes on diminish- 

 ing after its injection, and that by the sixth hour it had reached 

 (Exp. X) even a lower point than what it stood at after the twenty, 

 four hours' fast. 



(6.) Tine quantity of sugar found in the liver, as compared with that 

 met with in the blood. 



The great difference observable between the quantity of sugar in 

 the liver and in the blood shows how imperfect must be the passage 

 from the liver into the general circulation of such a diffusible sub- 

 stance as sugar. This is all the more remarkable when we remember 

 that the liver cells are surrounded not only by blood, but also by 

 lymph, vessels. 



(c.) The Presence of Sugar in the matter vomited. As previously 

 mentioned, several of the dogs vomited a quantity of mucus after the 

 injection of the sugar. 



In the cases in which the vomit was analysed it was found to 

 contain sugar in small quantities. 



(d.) Quantity of Sugar in the Alimentary Tract. In order to ascer- 

 tain if any of the sugar was eliminated into the alimentary tract, the 

 contents of the stomach and intestines of three dogs were analysed, 

 As all were in a fasting condition, contamination from food had not 

 to be feared. 



In only one case was sugar found in the stomach, and then only to 

 the amount of 0'174 gramme. In no case was it found in the intestines. 

 So it had, in all probability, been eliminated by the salivary glands 

 and swallowed with the saliva. I am led to this opinion on account 

 of "Weyert having pointed out that when large quantities of sugar 

 are injected into a vein, it is, in small quantities, eliminated with the 

 saliva. 



One may therefore, I think, consider that the alimentary tract does 

 not eliminate sugar. 



(e.) Quantity of sugar in the oedematous exudations, collected from 

 the kidneys and upper part of ureters after their ligature. 



