TWENTIETH CENTURY TEXT-BOOKS

EDITED BY

A. F. NIGHTINGALE, PH. D.

SUPERINTENDENT OF HIGH SCHOOLS, CHICAGO

Red-faced cormorants (Phalacrocorax urile) on Walrus Island, Pribilof group. Photograph by HARRY CHICHESTER.

ANIMAL LIFE

A FIRST BOOK OF ZOOLOGY

BY

DAVID STARR JORDAN, PH. D., LL. D.

PRESIDENT OF LELAND STANFORD JUNIOR UNIVERSITY

AND

VERNON L. KELLOGG, M. S.

PROFESSOR IN LELAND STANFORD JUNIOR UNIVERSITY

NEW YORK

D. APPLETON AND COMPANY