THE MACMILLAN COMPANY

NEW YORK. BOSTON CHICAGO
DALLAS SAN FRANCISCO

MACMILLAN & CO., LIMITED

LONDON BOMBAY CALCUTTA
MELBOURNE

THE MACMILLAN CO. OF CANADA, LTD.

TORONTO

PLANT, ANIMAL, HUMAN

BY

JAMES EDWARD PEABODY, A.M.

HEAD OF THE DEPARTMENT OF BIOLOGY, MORRIS HIGH SCHOOL
BRONX, NEW YORK CITY, AUTHOR OF "STUDIES IN PHYSI-
OLOGY " AND
LABORATORY EXERCISES IN ANATOMY

66

ARTHUR ELLSWORTH HUNT, PH.B.

HEAD OF THE DEPARTMENT OF BIOLOGY, MANUAL TRAINING
HIGH SCHOOL, BROOKLYN, NEW YORK CITY

"The wild life of to-day is not wholly ours to dispose
of as we please. It has been given to us in trust. We
must account for it to those who come after us and
audit our records." - HORNADAY.

New York

THE MACMILLAN COMPANY

1922

All rights reserved,

TO

THE MEMORY OF

MARTHA FREEMAN GODDARD

WHOSE DEVOTED INSTRUCTION IN BIOLOGY IS A LASTING

INFLUENCE FOR GOOD IN THE LIVES OF HUNDREDS

OF BOYS AND GIRLS AND WHOSE RARE SKILL

IN LEADERSHIP IS AN INSPIRATION TO

EVERY TEACHER WHO KNEW HER

THIS BOOK IS DEDICATED

BY THE AUTHORS