. The book of corn; a complete treatise upon the culture, marketing and uses of maize in America and elsewhere, for farmers, dealers, manufacturers and others--a comprehensive manual upon the production, sale, use and commerce of the world's greatest crop . n county, Ohio. He selected thisseed toward a standard type in his mind for fifty-sixyears, to be followed by his son, J. S. Learning, method of selection was to go through a field assoon as the earliest husks began to show signs of ripen-ing, selecting ears from stalks tapering from butt totassel, ears well filled over points, strai
. The book of corn; a complete treatise upon the culture, marketing and uses of maize in America and elsewhere, for farmers, dealers, manufacturers and others--a comprehensive manual upon the production, sale, use and commerce of the world's greatest crop . n county, Ohio. He selected thisseed toward a standard type in his mind for fifty-sixyears, to be followed by his son, J. S. Learning, method of selection was to go through a field assoon as the earliest husks began to show signs of ripen-ing, selecting ears from stalks tapering from butt totassel, ears well filled over points, straight rows ofkernels, and ripening in from ninety to one hun-dred and ten days. The Learning strain as grown by Mr E. E. Ches-ter of Illinois is from seed secured from Mr J. in 1885. Mr Chester has selected corn for BOTANY AND VARIETIES 23 seed from those ears showing the first ripening of thehusk so as to secure corn maturing it: from one hun-dred to one hundred and twenty days. No crossinghas been allowed, the corn being planted in largeisolated fields. Mr James Riley of Indiana securedseed of the Learning variety from Mr Chester. MrRiley selected for a thick, strong stalk, ears close tothe ground, medium cob, deep grain and bright yellow. Fig 7—Learning Butts, tips, size of cob, depth of kernel and shape of ears kernels. Mr J. H. Coolidge of Illinois secured Learn-ing seed from Mr Chester. Mr Coolidge has selectedfor a deep grain, long ear, well filled tip and butt, uni-form rows of kernels and early maturity. The Learning variety has the most uniform char-acteristics of any variety of yellow :orn grown. Itsadaptation to widely different conditions of soil and 24 THE BOOK OF CORN climate by selection has done much to strengthen thesecharacteristics. It is no doubt the type from whichmany varieties of yellow corn have been developed, asmost of the yellow varieties show some of the charac-teristics of the Learning corn ; and when their history istraced back they are
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