Explanation of Plate X. 



Fig. 1. Lymphatic leukemia. (After a blood specimen from the dog illustrated 

 in Pig. 155, stained with Ehrlich's tri-acid solution.) a, large lymphocytes with 

 darkly stained cytoplasm; 6, small lymphocytes; c, lymphocytes with undiffer- 

 entiated protoplasmic body; d, polynuelear leucocytes (neutrophile) ; e, transition 

 form; /, red blood corpuscles. (Enlarged about 925 times.) 



Pig. 2. Myelogenic leuTcemia. (Human blood specimen stained with Ehrlich's 

 tri-acid solution.) a, myelocytes; b, lymphocytes; c, polymorphonuclear (neutro- 

 phile) leucocytes; d, eosinophile leucocytes; e, disintegrated eosinophile cell; /, 

 normal red blood corpuscles; g, poikilocytes ; }i, microcytes: i, macrocytes; Ic, 

 normoblast; I, megaloblast. (Enlarged 925 times. After Weichselbavun). 



