152 ON 1111. NATUKK AND PRINCIPLES <>F 



Now it will subsequently be shown that the re- 

 sults thus obtained precisely correspond with the 

 phenomena generally admitted to constitute the 

 primary effects of inflammation. Even coagulating 

 lymph, the effusion of which is to this day men- 

 tioned by writers as the essential characteristic of 

 that state, and as furnishing the only satisfactory 

 distinction between it and congestion, will be seen 

 to have occasionally followed the application of an 

 impediment to the blood's passage through the 

 smaller vessels of the kidney. The peculiar circum- 

 stance, which determines the production of one or 

 other of the different effects met with, will soon be 

 made apparent. But I may remark, that these ex- 

 periments are, so far as my knowledge extends, the 

 first in which the interesting, and both in a thera- 

 peutical and pathological point of view important 

 process of the effusion of coagulating lymph has 

 been traced to the operation of a purely physical 

 cause. 



In pursuance of the inquiry, I shall now proceed 

 to show that the variety in the effects produced is 

 not altogether dependent upon, nor explicable by, a 

 difference in the degree of completeness of the ob- 

 struction. To be satisfied of this, it is only necessary 

 to examine the following Table; which proves that 

 the same degree of obstruction may, in different 

 cases, be productive of very different effects. 



