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  1. $6.41 profit per hen per year. The Corning egg book, illustrating the poultry methods originated by the late Prof. G. M. Gowell...and perfected by Edward and Gardner Corning. Ed. by Michael K. Boyer.
    By: Boyer, Michael K.,
    Publication info: [Philadelphia],Wilmer Atkinson co.,1909.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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