1870.] 



Action of Claret on the Human Body. 



83 



The substances precipitated by Liebig's mercuric nitrate were as usual 

 termed urea, and the nitrogen was calculated from this. It was also for 

 the sake of control determined by soda-lime. 



Nitrogen before claret. 







Nitrogen 



Nitrogen 



Days. 



Urea. 



calculated from 



by 





urea. 



soda-lime. 





grammes. 



grammes. 



grammes. 





30-299 



14-139 



14-211 



2nd day 



33-343 



15-560 



16-555 



3rd day 



31-094 



14-487 



14-917 



4th day 



34-960 



16-315 



16-933 



5th day 



31-038 



14-484 



15323 



6th day 



40-200 



18-760 



18-639 



7th day 



37-800 



16640 



17-469 



8th day 



39633 



18-495 



18024 



9th day 



37 050 



17-290 



16-779 



10th day 



39-940 



18-635 







35-535 



16680 



16-539 



The mean of the nine days of ureal nitrogen, which correspond with 

 the days of soda-lime nitrogen, is 16*493 grammes. The mean of the ten 

 first days in the previous series, with an equal quantity of food, was 

 16*211 grammes of nitrogen as calculated from the urea, and 16*226 

 grammes as determined by soda-lime. In the present experiments the 

 amounts are higher in a very trifling degree, viz. *379 gramme, and *313 

 gramme in excess respectively. The difference is so slight (under 6 grains 

 in 24 hours) that the two series may be considered identical. Possibly as 

 the man was 4 lbs. heavier, there might be some additional nitrogenous 

 tissue furnishing the slight excess of nitrogen. 



Nitrogen during claret. 



Days. 



Urea. 



Nitrogen 

 calculated from 

 urea. 



Nitrogen 



by 



soda-lime. 



11th day 



grammes. 



grammes. 



grammes. 



37-137 



17331 



12th day 



35-325 



16-485 



16-839 



13th day 



38-356 



17-899 



18-825 



14th day 



34-860 



16-268 



16074 





35 040 



16-352 



17-255 



16th day 



37-570 



17-532 



16-707 



17th day 



41-745 



19-486 



18-886 



18th day 



35-048 



16-355 



15-764 



19th day 



34650 



16-170 



15-443 



20th day 



31-510 



14-701 



14-600 



Means 



36-124 



16-858 



16-421 



The variations from the period before claret are so slight, and indeed 



g 2 



