284 E. V. Cowdry, The vital staining of mitochondria with janus green etc. 



2. Platelets (p. 9). 



a) Homogeneous with no affinity for janus green. 



b) Heterogeneous staining lightly with janus green. 



c) Containing five mitochondria. 



3. Lymphocytes (p. 10): 



a) Excentric nucleus. The mitochondria are clumped together. 



b) Concentric nucleus. The mitochondria are abundant, dis- 

 tributed in a ring about thè equator of the cell. 



c) Excentric nucleus. The mitochondria are rare and distri- 

 buted diffusely. 



4. Large lymphocytes (transitional and large mononuclear leuco- 

 cytes (p. 11): 



a) The mitochondria are abundant, rod-like and distributed 

 diffusely. 



b) The nucleus is more indented. The mitochondria are less 

 numerous, more granular and clumped together. 



5. Finely granular leucocytes (neutrophiles) p. 12: 



a) The mitochondria are distributed diffusely throughout the 

 cytoplasm. They may be distinguished from the specific 

 granulations, which appear a light gray shade are are 

 somewhat smaller. 



b) In amoeboid movement. The mitochondria are absent from 

 the tip of the pseudopod. 



6. Coarsely granular leucocytes (eosinophiles) p. 13: 



a) The mitochondria occur in the cytoplasm to one side of 

 the nucleus. They are in the form of granules and rods. 



b) The mitochondria are rare, only two or three could 

 be seen. 



