PLATE I.— Blood Elements. 



a, Red blood cells, Erythrocytes, stained in Ehrlich's neutro- 



phile mixture, 

 rt'-a^, Red blood cells stained in eosin-methylen blue. 

 n, Microcytes. 



/^, Poikylocyte. 



yt^-^•'^ Nucleated red blood cells. 



h, Polynuclear white blood cells, stained in eosin-methylen 



blue. 

 i, Polynuclear white blood cells, stained in Ehrlich's neutro- 



phile'mixture. 

 d, Transitional white blood cells, 



c' , INIononuclear white l)lood cell. 

 c-e Lymphocytes. 

 /, Eosinophile white blood cells. 



fir. Myelocytes, stained in Ehrlich's neutrophile mixture, 



nt, Myelocytes stained in methylen l)lue. 

 I, Basopliile white blood cell. 



0,' Blood plaques or blood plates. 



