C3 

 Bjo/oqy 



/ 



CONTENTS 



CHAP. PAGE 



I. Introduction . . . . . . . 1 



II. Growth and Change 8 



III. The Life-stories of some Sucking Insects . 16 



IV. From Water to Air . ' .- ... 23 



V. Transformations, Outward and Inward . . 35 



VI. Larvae and their Adaptations ... 49 



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 . . . 122 



Table of Geological Systems .... 123 



Bibliography ... ...";. . . . 124 



Index 129 



