Henry Gray, Human ovum examined fresh in the liquor folliculi.


A drawing of a human egg cell, from Gray’s Anatomy (the book, not the TV show). From its description quoted on Wikipedia:

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 germinal vesicle, in which is seen the germinal spot.

Happy nativity.