AND ITS RELATION TO ANIMAL LIFE 89 



of some animals coagulating and showing a 

 bright red on the surface, but when broken it is 

 black on the inside. 



Other bloods I have noticed show red and 

 black streaks intermingled, others all black and 

 others all red. I have thus had ocular demon- 

 stration that considerable variation exists in 

 the blood of animals, of which the truly normal 

 is the one showing entirely red. 



In discussing the subject with individual 

 farmers, one told me he had noticed in drawing 

 blood from cattle to be injected into others, 

 as a cure for rinderpest, after it had beende- 

 fibrinated, that much better results were ob- 

 tained from a red blood than from a dark one, 

 and so striking was this fact that afterwards he 

 would never use any but a red blood. At the 

 same time it must never be forgotten that there 

 are degrees of redness. 



Another African-born farmer, over sixty 

 years of age, says he has always noticed in 

 drawing blood from horses or cattle that if 

 the blood was dark, these animals were always 

 more liable to disease than those having a 

 brighter blood. 



With this evidence before us I think it 



