THE GERM CELLS: MITOSIS, MATURATION AND FERTILIZATION 



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Fig. i A. 



Cytbpla.sm 

 of ovum 



Fig. i E. 



Fig. i. — A, Human ovum examined fresh in the liquor folliculi (Waldeyer). The zona pellucida is 

 seen as a thick, clear girdle surrounded by the cells of the corona radiata. The egg itself shows a central 

 granular deutoplasmic area and a peripheral clear layer, and encloses the nucleus in which is seen the 

 nucleolus; B, ovum of monkey. X 4,?o. 



