34 THOMPSON YATES AND JOHNSTON LABORATORIES REPORT 
These fluids contained trypanosomes often in large numbers. The oedematous 
patches of tissue contained trypanosomes, often present in greater numbers than in 
the blood. Petechial patches, the size of a pin's head, were found on the pleural 
surface of the lungs. The brain and cord did not show any marked macroscopic 
changes, very often there was considerable oedema around the lumbar region of the 
cord. The cornea was sometimes opaque. 
The autopsies on the dog and rabbits and cat showed no special features. An 
account of the histo-pathology of the nerve tissues and organs will be found in Part II. 
Divisional forms of the parasites have been found in all exudate fluid, exudates and 
juices from the organs. If the autopsy is done immediately after death large numbers 
of remarkably fine divisional forms will be found in the exudates. These forms 
rapidly lose their contour if the animal has been dead some hours. 
