104 J. A. Gilruth : S^^irocJiaefosis. 



the red corpuscles, as described by Dr. A. A. Brown in the 

 " Journal of Agriculture "' for February. 



Intracorpuscular forms of spirochaetes have been described 

 by Balfouri as constituting the '' after phase "' of spirochaetosis. 

 These bodies were only found in animals which recovered, and 

 he regards them as a definite stage in the life history of the 

 blood parasite. Von Prowazek has recorded somewhat similar 

 intracorpuscular bodies in fowl Spirochaetosis. Dodd, how- 

 ever, in his Queensland experiments failed to demonstrate such 

 bodies in any of the recovered' fowls. My examination of the 

 blood in which the spirochaetes disappeared so suddenly also 

 failed to detect any similar bodies to those described by 

 Balfour. 



1 3rd Report. Wellcome Research Laboratory, Sudan. 



