Romer, Alfred Sherwood, 1894- The procession of life / A.S. Romer - London : Weidenfeld & Nicolson, 1968. - viii, 323 p. : ill. ; 25 cm. - The Weidenfeld and Nicolson natural history . Includes bibliographical references Subjects--Topical Terms: EvolutionAnatomy, Comparative Dewey Class. No.: 591.38