310 SUMMAEY OF CUllRENT RESEARCHES RELATING TO 



tion of the blood showed in the peripheral circulation the presence 

 of large numbers of a species of Leucocytozoon, which the author 

 names L. ana f is, sp. n. This form is not present in the blood of 

 healthy ducks. As transmission experiments did not succeed, it is 

 not proved that the parasite causes the disease. The predominant 

 type is a spindle-shaped organism, 35 //.to 00 /a in length by 10 //. in 

 width, showing an oval elongated or irregularly shaped nucleus, with 

 a dark chromatic band along one border. In the centre maybe observed 

 a small cliromatin-stainins bodv. 



