202 ox THE NATUiii-: AND PRINCIPLES OF 



changes as the sole and invariable cause of determi- 

 nation of blood. The following tables exhibit the 

 results of a few experiments which were undertaken 

 for the purpose of elucidating some points connected 

 with the pathology of this affection; and, though 

 incapable of removing the difficulty which we have 

 just been considering, they are not without some 

 interest both in a physiological and pathological 

 point of view. 



From four young rabbits, of the same size and 

 strength, the left kidney was removed through an 

 incision in the loins, and immediately weighed. The 

 animals were killed at different periods, and the 

 weight of the remaining kidney and the condition of 

 the urine carefully ascertained. The results were, 

 that in 



TABLE IV. 



A considerable number of observations would be 

 required to enable us to determine with precision 

 the average rate of increase in the sixe of the re- 

 maining organ. These few, however, suffice to show 

 that it takes place gradually, and is probably from 

 that very circumstance for the most part unac- 



