Gavin Rylands de Beer

November 1, 1899 – June 21, 1972

A handbook on evolution

Gavin Rylands de Beer

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Gavin Rylands de Beer A handbook on evolution

The Elements of Experimental Embryology

Gavin Rylands de Beer

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Gavin Rylands de Beer The Elements of Experimental Embryology

Vertebrate Zoology; an Introduction to the Comparative Anatomy, Embryology, and Evolution of Chordate Animals

Gavin Rylands de Beer

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Gavin Rylands de Beer Vertebrate Zoology; an Introduction to the Comparative Anatomy, Embryology, and Evolution of Chordate Animals