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قراءة كتاب An Elementary Study of Insects
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اللغة: English
الصفحة رقم: 1
AN ELEMENTARY
STUDY OF
INSECTS
By
LEONARD HASEMAN
Professor of Entomology in the University of Missouri
Columbia, Missouri
MISSOURI BOOK COMPANY
1923
CONTENTS.
- Chapter I Insects:
- (1) What they are.
- (2) Their principal characteristics.
- (3) Their methods of developing.
- (4) The principal orders.
- (5) Their habits.
- (6) Their role in agriculture.
- Chapter III The Grasshopper:
- (1) Brief discussion of the grasshopper.
- (2) Field studies.
- (3) Breeding cage observations.
- (4) Study of specimen.