Frontispiece.
[Illustration] [Transcriber’s note: Two fellows observe a tree.]
“Come forth into the light of things,
Let Nature be your Teacher.”
—Wordsworth.
Studies of Trees
by
J. J. Levison, M.F.
Lecturer on Ornamental and Shade Trees, Yale University Forest School;
Forester to the Department of Parks, Brooklyn, N. Y.
First Edition
First Thousand
1914

Preface

In presenting this volume, the author is aware that there are severalexcellent books, dealing with one phase or another of tree life, alreadybefore the public. It is believed, however, that there is still need foran all-round book, adapted to the beginner, which gives in a brief andnot too technical way the most important facts concerning theidentification, structure and uses of our more common trees, and whichconsiders their habits, enemies and care both when growing alone andwhen growing in groups or forests.

In the chapters on the identification of trees, the aim has been tobring before the student only such characters and facts as shall helphim to distinguish the tree readily during all seasons of the year.Special stress is laid in each case on the most striking peculiarities.Possible confusion with other trees of similar appearance is preventedas far as possible through comparisons with trees of like form or habit.

Only such information is given concerning the structure and requirementsof trees as will enable the reader better to understand the subsequentchapters. In the second half of the book, practical application is madeof the student’s general knowledge thus acquired, and he is acquaintedwith the fundamental principles of planting, care, forestry, woodidentification and nature study.

The author recognizes the vastness of the field he is attempting tocover and the impossibility of even touching, in a small hand-book ofthis character, on every phase of tree study. He presumes no further;yet he hopes that by adhering to what is salient and by eliminating theless important, though possibly interesting, facts, he is able to offera general and elementary résumé of the whole subject of value tostudents, private owners, farmers and teachers.

In the preparation of Chapter VIII on “Our Common Woods: TheirIdentification, Properties and Uses,” considerable aid has been receivedfrom Prof. Samuel J. Record, author of “Economic Woods of the UnitedStates.” Acknowledgment is also due to the U. S. Forest Service for thephotographs used in Figs. 18, 122 to 138 inclusive and 142; to Dr.George B. Sudworth, Dendrologist of the U. S. Forest Service, forchecking up the nomenclature in the lists of trees under Chapter V; toDr. E. P. Felt, Entomologist of the State of New York, for suggestions inthe preparation of the section of the book relating to insects; to Dr.W. A. Murrill, Ass

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