COLLEGE OF PHARMACY

CIALIFORNIA COLLEGE OF

DEPARTMENT

OF
MATERIA MEDICA
UNIVERSITY OF CALIFORNIA

GENERAL BIOLOGY

BY

S. J. HOLMES, Ph.D.
PROFESSOR OF ZOOLOGY IN THE UNIVERSITY OF CALIFORNIA

ICJO

hb

NEW YORK
HARCOURT, BRACE AND COMPANY

COPYRIGHT, 1926, BY
HARCOURT, BRACE AND COMPANY, INC.

Printed in the U.S. A.