in Lacteal Absorption and Nutrition. 39 



Exp. 2. Kitten. — Prussic acid dropped on the nose, two hoiu-s 

 and a half after a meal of bread and milk, having fasted twelve 

 hours previous. 



One electrode in contact with the mucous membrane of the 

 duodenum, the other with the chyle from the same part; the 

 latter positive 4°. 



The electrodes were cleaned and used in the same manner with 

 a portion of the intestine lower down ; chyle positive 4° ; the 

 effect made to increase by making and breaking contact. 



The lacteals contained a clear and transparent fluid. 



Exp. 3. Rabbit. — Prussic acid dropped on the eye, two hours 

 after a meal of cabbage leaves. 



One electrode in contact with the mucous membrane of the 

 small intestine, the other with a supposed lacteal vessel from the 

 same part, and afterwards with an enlarged mesenteric gland ; 

 the latter electrode positive in both instances 3°. 



It was difficult in this instance to ascertain precisely the lacteal 

 vessel. 



Exp. 4. Rabbit. — Four hours after death ; death from natural 

 causes. 



The mucous membrane of the small intestine, and what ap- 

 peared to be a lacteal vessel from the same part, was wounded 

 and formed into a circuit; mucous membrane negative 4P ; in- 

 creased by making and breaking contact. 



The electrodes were cleaned, and the mucous membrane of a 

 different poi'tion of the small intestine and the surface of the 

 mesentery were formed into a circuit; the mucous membrane 

 still negative 4°. 



Fluid blood in the veins ; small intestines distended with a 

 fluid very much like gruel ; the abdominal viscera very moist. 



A portion of the intestine was removed with its contents, and 

 a circuit then formed between the inside and outside of the gut ; 

 the contents negative 3°. 



The contents were removed by passing a stream of water 

 through the gut ; no effect occurred when the circuit was formed 

 between the inside and outside of the intestine. 



Exp. 5, Rabbit. — Twelve hours after death; death from 

 natural causes. 



Similar circuits were formed as in the last experiment, and 

 with similar results. 



Exp. 6. Rabbit. — Prussic acid dropped on the eye, two hours 

 after a meal of cabbage leaves ; the two previous meals consisted 

 of oats. 



The mucous membrane of the small intestine, and a wounded 

 lacteal from the same part, were formed into a circuit ; the latter 

 positive 8". 



