This special re-print edition of US Dept. of Agriculture's book “A Biometrical Study of Egg Production in the Domestic Fowl” is the result of a study of annual egg production in poultry. Written in 1909, this classic text on poultry sheds light on variation in egg production in laying hens with an eye toward making improvement in their egg laying abilities. The findings of this study will be of interest to those interested in the improvement of laying hens, regardless of their breed of choice. Note: This edition is a perfect facsimile of the original edition and is not set in a modern typeface. As a result, some type characters and images might suffer from slight imperfections or minor shadows in the page background.