1894.] Injection of Sugar on the Gases of the Shod. 



The nerve symptoms following the injection of the sugar were 

 greater in this case. The vomiting and tremors of the limbs were 

 followed by well-marked epileptic fits, which, an hour later, were 

 succeeded by a semi-comatose condition. Although the animal could 

 still be roused, it remained in a sleepy condition up to the third 

 bleeding, when it was killed. 



The percentage of carbonic acid fell in the first hour after the 

 sugar injection, while the animal was in a drowsy condition, from 

 38'541 to 28'042. This gives a diminution of carbonic acid of 10'499 

 per cent. Four and a half hours after the injection the carbonic acid 

 had risen to 28'926 per cent. That is to say, it was 9'615 per cent, 

 less than the quantity found in the standard blood. 



The oxygen which originally stood at 19*902 per cent, fell, in the 

 first hour, to 7'220 per cent. ; therefore it was 12-682 per cent, less 

 than the normal amount. In four and a half hours after the sugar 

 injection it increased to 13*968 per cent., which is only 5'934 per cent, 

 less than the original quantity found. 



Thus it appears in this case there was a greater diminution in both 

 the carbonic acid and oxygen of the blood during the first hour than 

 in the former experiment ; a result corresponding with the far greater 

 nerve disturbances, and no doubt due, as stated in my former paper, 

 to a larger percentage of sugar to bodily weight having been injected 

 iuto the circulation. It was found in this case that the carbonic acid 

 was, four and a half hours after the injection of the sugar, while the 

 animal was in a semi-comatose state, almost as low as during the first 

 hour. The oxygen had by this time, on the other hand, markedly 

 increased in quantity. 



These results having been obtained, it was decided to withdraw the 

 third portion of blood somewhat earlier after the sugar injection than 

 in the foregoing cases. 



Experiment 3. 



Here the nervous symptoms which showed themselves in the form 

 of vomiting, trembling, and two epileptic attacks were followed by 



