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FiGUEE 329. — Embryo spleen. Embryo incubated 8 days 1 hour. At this age it is difficult to obtain 

 a good smear because of the great fragility of the cells and the masking by the stained serum fluid 

 and granules. 1,370X. 



1, 2 Metagranuloblasts. 



3-6 Metagranuloblasts in which the cytoplasm is 

 masked by the overlying stained serum. 



7 A heterophil promyelocyte. 



8 Heterophil mesomyelocyte with many eosinophilic 

 spheres, some light and some dark. 



9 Mature heterophil. 



13, 



10 Immature cell in mitosis, prophase. 



11 Embryonic erythroblast. 



12 Embryonic thrombocytes. 



14 Broken cells with liberated naked nuclei. 



15 Strands of chromatin from the nuclei of 

 broken when the slide was made. 



cells 



158 



