39G 



INFLUENCE OF MUSCULAR EXERCISE ON THE URINE. [BOOK I. 



or from original determinations. The urine, and in Flint's experiment the 

 i'aeces also, were collected, and their nitrogen determined ; in the case 

 of the urine, only the nitrogen of the urea and uric acid was taken. 

 In Flint's experiments the weight of Weston fell from an average of 

 119 or 120 Ibs. to 116 '5 Ibs. on the first day, and gradually to about 

 115*75 Ibs. on the fifth day: it quickly regained the normal during 

 the rest succeeding the march. In Pavy's experiment there are no 

 data for exactly comparing Weston's weight before, during and after 

 the walk; but during the six days of exercise the weight fell from 134i 

 Ibs. on the first day to 130 T 5 g- Ibs. on the sixth. 



The following tables will sufficiently bear out the general conclusion 

 of these experiments. The numbers in the case of Flint's observations 

 are the revised ones published by him in the Journal of Anatomy and 

 Physiology, after Pavy's observations had appeared. 



OBSERVATIONS OF PROF. FLINT. 



