ELEMENTS OF HIPPOLOGY 



43 



3 



experiments, it has been estimated that it takes, in the horse, 



thirty-one seconds for the blood to complete this round of 



circulation. 



If the flow of the blood in the capillaries, for any reason, 



is impeded, the white corpuscles pass through the walls of those 



vessels and 



accumulate 

 2 



in the 



neigh b o r - 

 ing tissues. 

 These cor- 

 pusclespos- 

 sess the 

 power o f 

 mult i p 1 y- 

 ing indefi- 

 nitely, and 

 with great 

 rapidity;, 

 the nucleus 

 of one cor- 

 puscle di- 

 vides into 

 two, and 

 each of these into others, and so on. The cells that largely 

 compose the tissues possess, in a greater or less degree, this same 

 property, and it is the accumulation of these minute organ- 

 isms that accounts for the swelling that accompanies 

 inflammation. 



In Figure 30 is shown, magnified to the same power as in the 

 preceding cut, a similar living membrance, but inflamed. The 

 multiplication of the corpuscles is clearly shown, and also the 

 migration of the white corpuscles.* 



*Let it be understood that this discussion is the merest outline of 

 the wonderful processes of nourishment and destruction of living tis- 



mmm 





EPS :. 



Figure 30. 



%s 



Highly Magnified Living Membrane 

 of a Frog, Inflamed. 



