Arch. Anat. Physiol wiss. Med., 491-529, 1861.
Proof that the ovum is unicellular in all vertebrates.
Leipzig: Wilhelm Engelmann, 1870.
Gegenbaur’s best work. He stressed the value of comparative anatomy as the basis of the study of descent, considering that knowledge of the relations of corresponding parts in different animals was more important even than comparative embryology in this respect.
Subjects: COMPARATIVE ANATOMY, EVOLUTION