E. Hindle and Lajos G(5zony 
287 
The results were as follows, all three series of tests being tabulated 
together for the sake of comparison : 
Blood collected from 
calf, May 14th 
+1 c.c. +1 C.C. 
active inactive 
Organ employed serum serum 
Infected Brain - 
„ Diaphragm - 
,, Heart - 
„ Kidney - 
„ Liver - - 
,, Lymphatic gland - 
„ Lung 
Muscle - 
„ Pancreas — 
„ Spleen - - 
,, Suprarenal gland - 
Thymus 
„ Thyroid 
Normal Liver 
„ Kidney 
Isolated parasites 
Control (serum alone) - - 
Blood collected from Blood collected from 
calf. May 20tli 
calf, May 28th 
+1 c.c. 
+ 1 C.C. 
+1 c.c. 
+ 1 c.c. 
active 
inactive 
active 
inactive 
serum 
serum 
serum 
serum 
- 
+ 
- 
+ 
- 
- 
+ 
- 
+ 
+ 
+ 
_ 
+ 
- 
_L 
+ 
+ 
_ 
+ 
+ 
- 
+ 
- 
+ 
- 
When calf 2 first showed febrile symptoms, no ferments could be 
detected in its blood, but six days later the serum gave distinct reactions 
with lymphatic and suprarenal glands, and isolated parasites. The 
result is in accordance with what is known of the pathology of East 
Coast Fever, as the first organs to be affected are the lymphatic glands, 
where the so-called “ blue bodies,” a stage in the life-cycle of Theileria 
parva, are found before the parasite can be detected in the peripheral 
circulation. 
After another five days, when the animal was very heavily infected, 
all the organs, Avith the exception of the brain and thymus, gave posi¬ 
tive reactions, thus showing that destruction of tissue was taking place 
in all these organs. 
Babesia canis. 
Two experiments were made Avith the serum of dogs infected AAuth 
Babesia canis, but owing to the haemolysis produced by the parasites 
it was only possible to obtain satisfactory reactions when the blood 
was taken at early stages of the disease. During the later stages 
