"Sebastapool" changed to "Sebastapol" in List of Illustrations (Egyptian Gander and Sebastapol Goose) Figure 50 caption, and twice in the index. This is consistent with the use of "Sebastapol" in the text.
Page 20: "neccessary" changed to "necessary" ( ...it becomes neccessary to mate a smaller number of females ...).
Page 30: missing page reference added (See Page 14).
Page 72: comma deleted after "Of" (Of course, eggs sufficient to fill the entire incubator capacity ...)
Fig 28 caption: "yords" changed to "yards" (Long brooder house and yards with feeding track.)
Page 107: duplicate word "the" deleted (... hung in a steam box with the heads outside ...)
Page 131: "chickens" changed to "chicken" (Ducklings can be brooded if desired by means of chicken hens.)
Page 136: missing page reference added ( ...in accordance with the directions given on page 106)
Page 137: missing page reference added (See page 119).
Page 141: "1920" changed to "1910" (The census figures of 1920 compared with those for 1910 ...)