12 



Chapter I 



The liberation of the parasites is associated with a great breaking 

 down of the corpuscles. Clearly therefore the oxygen capacity of 

 the blood cannot be judged from corpuscle counts, firstly, because 

 of the large amount of haemoglobin in the plasma and, secondly, 

 because there is no assumption that the fresh corpuscles formed 



stowing the usual mode 



of multiplication 

 4 of 



Nuttallia equi 



in tbe circulating blood 



FIG. 2. Illustrating the usual cycle of development of N. equi in the circulating blood. 



under the stress of such a disease contain the normal quantity of 

 haemoglobin. The oxygen capacity must be tested, if at all, either 

 by the direct test of oxygen measurement, or by the haemoglobino- 

 meter, the use of which depends upon the assumption of the very 

 point which we have declined above to discuss without further data. 

 I append the history of the case and its chart. 



