The Blood and lAjmph. 97 



in the greater numbers, in about the proportion of 500 

 to 1, It is interesting to note that the white blood cells 

 have the power of motion and thus pass through the 

 walls of blood vessels, and also that if a white blood cell 

 comes in contact with foreign particles, such as germs, 

 coal dust, etc., it will flow around and enwrap the 

 object, and thus the particle taken in may be carried from 

 one place to another, knowledge of this fact aids us in 

 reasoning out the spread of a disease from one organ or 

 part of the body to another. 



The white blood corpuscles have been termed the 

 policemen or scavengers of the body, should germs gain 

 entrance at any point through a wound there is a flock- 

 ing of the white cells to the part and a battle royal 

 between the germs and the white cells takes place, many 

 on both sides are slain and are thrown off from the seat 

 of war (the wound) as pus (matter); if, however, the 

 body attacked is in good health its white cells win, over- 

 come, kill and cast out the slaughtered; if, however, the 

 germs are in the majority, the white cells weak, further 

 inroads are made by the germs, the disease affects one 

 organ after another until the animal or person dies from 

 the disease. Tissue that has run its course, and is worn 

 out and requires removing, since its place has been taken 

 by younger structures comes under the influence of these 

 cells, which originate in the marrow of bone, and is 

 removed. 



Red blood cells are about g - 2 1 oir of an inch in diam- 

 eter and contain in their substance the hemaglobin or 

 red coloring matter of the blood, might be considered as 

 bags of jelly like protoplasm saturated with hemaglobin. 

 7 



