Ovary anatomy, 1866 illustration. The six dissections show (by row, right to left, top to bottom): an ovary with ovarian follicles at different stages of development; an ovarian follicle isolated and dissected; an ovum (egg) in its membrane; an ovum dissected; a corpus luteum structure; scars formed due to development of corpus luteum structures. This page is plate 75 from the third volume of 'Atlas d'anatomie descriptive du corps humain' (1844-1866) by French anatomists Constantin Bonamy and Paul Broca. This work described the anatomy of the human body with over 250 hand-coloured lithographs. The illustrations were by Emile Beau, with the text by Bonamy and Broca. The three volumes were bound as four books in 1866 when the atlas was completed. This page is from the fourth book 'Generation Respiration', on the genitourinary and respiratory systems.