CONTENTS. 



INTRODUCTION. 



PAGB 



Entomology defined . . 3 

 Extent of subject ... 4 

 Variety of liabits ... 7 



Grounds of superiority . . 8 

 Wisdom of Creation in insects 



especially shown . . .11 

 Benefits and Injuries from 



Insects 11 



Insects used as food, &c. . . 12 

 Use of insects in the general eco- 

 nomy of nature . . .15 

 Obnoxious powers of insects . 16 

 Plag-ue of flies . . . .17 

 Musquito— Harvest hug . . 19 

 Insects attacking man, &c. . 20 



furniture, provisions . 22 



growing crops . . 23 



trees . , . .24 



Remedies against insects . . 27 

 Modes of Research . . 28 

 Amateur collector — Collecting 



apparatus . . . .29 

 Ravages of Anthreni . . .31 

 Nomenclaturist . . . .32 

 Generalized views of Entomo- 

 logy requisite . . . .33 

 Investigation of the names of in- 

 sects 35 



Out-door Entomologist, and ob- 

 server of nature . . .37 



Advantages of studying from the 



life 



Structure dependent upon habits 

 Character of the true naturalist 

 Relations of Insects 

 Affinity and analogy . 

 Instances of these relations 

 Proof of a system 

 Ditficulties of the natural sys 



tem 



Number of insect species . 

 Classification and Nomen 



clature of Insects 

 Uses of nomenclature 

 Series of nature . 

 Constancy of species . 

 Varieties .... 

 Specific names . 

 Generic names . 

 Rise of Entomological Sci 



ENCE .... 



Aristotle and the ancients . 

 Revival of letters 

 Redi, Swammerdam, &c. . 

 Linna?us .... 

 Fabricius— Latreille . 

 Nature of modern researches 

 British authors . 

 Entomological Societies 



CHAPTER I. 



ON THE EXTENT AND APPLICATION OF THE TERM INSECT. 



Leading characters of insects . 76 | tained . . . . 



The Linnaean sub-kingdom re- 



Division into classes 



History of class . 



Relations of Crustacea 



Characters . 



Typical organization . 



Nomenclature of organs 



Senses 



CHAPTER II. 

 Class I.— Crustacea. 



80 I Moulting . 



81 I Metamorphoses . 



82 I Distribution into orders 



83 I Order 1.— Dec a pod a 



84 I Sub-order Brachijura 



85 Characters . 



