CONTENTS 



CHAP. PAGE 



I. Introduction . 



II. Growth and Change 



III. The Life-stories of some Sucking Insects 16 



IV. From Water to Air 



V. Transformations, Outward and Inward . 



VI. Larvae and their Adaptations 



VII. Pupae and their Modifications . 79 



VIII. The Life- story and the Seasons . 89 

 IX. Past and Present the Meaning of the Story 105 



Outline Classification of Insects . 1'22 



Table of Geological Systems . 123 



Bibliography . 124 



Index 129 



