This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Subtitle: A Dissertation, Submitted to the Faculty of the Graduate School of Arts, Literature, and Science, in Candidacy for the Degree of Doctor of Philosophy; Department of Zoology; Original Published by: s.n. in 1900 in 73 pages; Subjects: Spermatogenesis in animals; Pigeons; Law / General; Law / Administrative Law