152 Dr. V. Harley. The Influence of Intra-Venous [June 7, 



drowsiness, which lasted until after the second bleeding. The drow- 

 siness in this case passed off before the third bleeding. 



In the standard specimen of blood the carbonic acid was 42 '260 per 

 cent., and an hour after the intra- venous injection of the sugar it 

 fell to 33'075 per cent., being a decrease of 9'185 per cent. The 

 third portion of blood taken in three hours, that is to say after the 

 drowsiness had passed off, was found to contain 38'000 per cent, of 

 carbonic acid, a decrease from the normal of 4'260 per cent. 



The specimen of oxygen from the normal blood was lost. The 

 quantity found an hour after was 1O217 per cent., and three hours 

 after the sugar injection it had increased to 14*569 per cent. 



The results of this experiment, as far as they go, correspond very 

 closely with those of Experiment 1 ; in which there was likewise 

 only a very slight nervous disturbance. 



Experiment 4. 



Although this dog had vomiting and marked tremor of the limbs 

 there were no epileptic seizures. Sleepiness, however, came on later, 

 and was marked at the time of the third bleeding. 



In the first specimen of blood the quantity of carbonic acid was 

 39'520 per cent., and it diminished during the first hour after the 

 sugar injection to 32'140 per cent., being a decrease of 7*380 per 

 cent. Three hours after the injection of the sugar, the carbonic 

 acid fell still further, it being then only 27' 725 per cent., that is to 

 say 14' 795 per cent, less than the original amount. 



The oxygen, which at the beginning was 16*025 per cent., de- 

 creased during the first hour to 15'561 per cent., being a loss of 

 0*464 per cent. By the third hour it again rose to 17*767 per cent., 

 that being 1'742 per cent, more than was found in the normal blood. 



As in Experiment 2, this dog had become semi-comatose by the 

 third bleeding, the carbonic acid being then even less than what it 

 was during the first hour. 



