METHODS OF EXAMINATION 601 



dried and mounted. The hemoglobin of the red corpuscles is 

 washed out by the eosin solution, and the smaller forms of the 

 malarial parasite stand out as round circles containing the char- 

 acteristic chromatin dots ; and in consequence of the greater 

 number present in a given area as compared with an ordinary 

 preparation their recognition is very easy. For the large forms 

 of the parasite Ross has found it useful to make such a film 

 and, hemolysing the red cells with distilled water, to examine 

 it unstained. The presence of pigment in the parasites enables 

 them to be readily seen. 



