Barth, Lester G. 1905-1979. The energetics of development : a study of metabolism in the frog egg / [by] Lester G. Barth [and] Lucena J. Barth. - New York : Columbia University Press , 1954. - 117 p. : ill. ; 25 cm. - Columbia bicentennial editions and studies . Includes bibliographical references. Subjects--Topical Terms: Ovum.Amphibians--Eggs.Frogs.Metabolism. Dewey Class. No.: 591.33