Originally published in 1917, this detailed and extensively illustrated works on The breeding of animals is thoroughly recommended for inclusion on the bookshelf of all Animal Breeders. With Chapters including; Reproduction, Breeding Season, Fertility and In-Breeding as well as illustrations on; Cell division and Prosterior presentation amongs others, this detailed study contains much information that is still usefull and practical today. Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.