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250 pages - with index - covering such topics as : Purebreds, Importance of Animal Improvement, Selection, Sex Determination, Fertility, Miss Helen King, spireme thread, hybrids, feed costs, cannon bone,and Dairy Cattle. Plenty of tabular data. B/W photographs - some at the microscopic level, assist text. Cond : Boards are buff coloured with brown lettering. Dust jacket - (if issued) is missing. Name of p/o 1953 on ffep. No other marks, tears, nor flaws. Tight, clean, and bright. Quote (p. 87) : " A single pair of genes may be responsible for the presence or absence of horns in cattle, but there are several types of horns which may be characterized as Shorthorn, Jersy, etc. Other factors, besides those responsoble for the presence of horns, are responsible for the shape, size, texture, and color ,_._._. ."by Size: Octavo.
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