ELEMENTS
OF
STRUCTURAL AND SYSTEMATIC BOTANY,
FOR
HIGH SCHOOLS AND ELEMENTARY
COLLEGE COURSES.
BY
DOUGLAS HOUGHTON CAMPBELL, PH.D.,
PROFESSOR OF BOTANY IN THE INDIANA UNIVERSITY.
BOSTON, U.S.A.:
PUBLISHED BY GINN & COMPANY.
COPYRIGHT, 1890,
BY DOUGLAS HOUGHTON CAMPBELL.
ALL RIGHTS RESERVED.
TYPOGRAPHY BY J. S. CUSHING & CO., BOSTON, U.S.A.
PRESSWORK BY GINN & CO., BOSTON, U.S.A.
PREFACE.
The rapid advances made in the science of botany within the last few years necessitate changes in the text books in use as well as in methods of teaching. Having, in his own experience as a teacher, felt the need of a book different from any now in use, the author has prepared the present volume with a hope that it may serve the purpose for which it is intended; viz., an introduction to the study of botany for use in high schools especially, but sufficiently comprehensive to serve also as a beginning book in most colleges.
It does not pretend to be a complete treatise of the whole science, and this, it is hoped, will be sufficient apology for the absence from its pages of many important subjects, especially physiological topics.
It was found impracticable to compress within the limits of a book of moderate size anything like a thorough discussion of even the most important topics of _all_ the departments of botany. As a thorough understanding of the structure of any organism forms th…