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The fundamental facts of mammalian development from a dynamic point of view are presented on the basis of a single species. Only recently have the greatest gaps in our knowledge of the development of the pig been filled; much of this work has come from the Baltimore anatomists, notably Streeter, Sabin and Heuser. The author has made the most of these studies with their splendid photographs and drawings. His attitude toward the student is that of a guide on an interesting journey, and the dreary pedagogue would do well to adopt something of this point of view and more of the freshness of illustration. Thus: "The embryo in his private amniotic aquarium," or "We may liken the matrix of bone to reinforced concrete." Under these conditions we may forgive occasional loose and superficial explanations of events. The chapters on the early stages present new and some unpublished work and are
The Embryology of the Pig. JAMA. 1927;89(7):546. doi:10.1001/jama.1927.02690070056041
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