Note 1 — Chapter II · Breeds and Varieties—How to Mate to Produce Exhibition Specimens—Preparing Ducks for the Show—Catching and Handling
Reading edition
For a more detailed discussion of the principles of breeding as applied to chickens and which is equally applicable to ducks, the reader is referred to "The Mating and Breeding of Poultry" by Harry M. Lamon and Rob R. Slocum, published by the Orange Judd Publishing Company, New York City.