9 



In 1902, Calvert, ('']) working in IManila on Filijiino in'isoners of 

 war, fonnd four cases of filariasis — lymphatic varices and liydrocele. 

 No description of the parasites is given, but they were of the 

 nocturnal variety and probably the embryos of Filaria bnncrofti. 

 By means of extensive blood counting in three cases he showed 

 the presence of a decided eosinophilia, which was most marked 

 at the time when the embryos were absent from the peripheral 

 circulation. Trichinosis was excluded, but apparently no exami- 

 nation was made for uncinaria. 



In our case not so many counts were made. The eosinopliiles 

 varied from 6 per cent (10 a. m.) to 12 per cent (12 p. m. ) and 

 were most numerous in the peripheral circulation at the time 

 when the embryos occurred in greatest numbers, as follow^s: 



July 28, 10 a. m. 



[Reds, 4,340,000; whites, 11,000.] 



Per cent. 



Polynuclear and transitional leucocytes 55 



Eosinophiles 6 



Basophiles 4 



Large mononuclears 22 



Small mononuclears 13 



Total 100 



One hundred leucocytes counted; 1 normoblast and no tilaria seen. 



August 9, S j). )ii. 



[Reds, 4,290,000; whites, G,000.] 



Differentlnl. 



8 p.m. 



12 p. m. 



Polynuclear and transitional leucocytes. 



Eosinophiles 



BHSophiles 



Large mononuclears 



Small mononuclears 



Per cent. 

 72 



10.50 



1..W 



3.50 



12.50 



Per cent. 

 71. 50 

 12 



1.50 



5 

 10 



ToUil- 



100 



100 



Two hundred leucocytes counted. 



Numhir of Jiliiria ])cr oililc centimefir. 



[Calculated from the average number in two slides.^ 



s J), m 



12 p. m 



4S9 

 1,079 



