[...] to test the contents [...] value. [Agri]culture is after a better [...] photo shows some of the [...] being made to determine [...] hens lay the better eggs, and if eggs can be bettered by cross-breeding the chickens
Summary
Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description
Date
01/01/1937
Contributors
Harris & Ewing, photographer
Source
Library of Congress
Copyright info
No known restrictions on publication.