ELEMENTS OF HIPPOLOGY. 



43 



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 

 in the 

 neighb o r - 

 ing tissues. 

 These c6r- 

 puscles pos- 

 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 



estruction of living tis- 



FlGURE 30. 



-Highly Magnified Living Mehibrane 

 OF A Frog, Inflamed. 



the wonderful processes^ 



