TOUCHING THE STRUCTURE, DEVELOPMENT, DISTRIBUTION, AND NATURAL ARRANGEMENT OF THE RACES OF ANIMALS, LIVING AND EXTINCT WITH NUMEROUS ILLUSTRATIONS. PART I. COMPARATIVE PHYSIOLOGY. FOR THE USE OF SCHOOLS AND COLLEGES. BY LOUIS AGASSIZ AND A. A. GOULD. REVISED EDITION. BOSTON. GOULD AND LINCOLN, 59 WASHINGTON STREET. NEW YORK: SHELDON, BLAKEMAN & CO. CINCINNATI: GEO. S: BLANCHARD. |