﻿CONTENTS. Xiii 



CHAPTER XIII. 



PACE 



Habits and Structure of Insects (continued) . . . .07 



Spittle Insect, 9T, 98 ; Cicada or Seventeen-year Locust, G9, 100. 



CHAPTER XIV. 



Habits and Structure of Insects (concluded) . , . . 101 



May Fly or Ephemera, 100-103 ; Caddis Worm, 104 ; GaU Fly, 104, 105 ; Other 

 Galls, 106. 



CHAPTER XV. 



Spiders . . . . . . . . .109 



Parts of a Spider. 110: Mouth Tarts and Eyes, 111 ; Spinnerets, 112 ; Legs, 113; 

 Habits of some. 114; Net Building, 115: Ballooning Spiders, 116, 117; Egg 

 Cases, Young Spiders, 111, 118, Care for the Youn/, 119, 120. 



CHAPTER XVI. 

 Daddy-long-legs, Centiped"s, and Millipedes . . . .121 



Laddy-long-legs, 121-1-23 : Centipedes, 123,124; Mouth, Parts of 125; Millepedes, 

 126; How they lay their Eggs, and Young, 127; Comparison between Myrio- 

 pods and Insects, 127, 123 ; Some Characters of Insects, Spiders, and Myriopods, 



CHAPTER XVII. 



Cr.AW-FiSH and Lobste7v . . . . . . .130 



Craw-Fish, where found, 130 ; Ee?ions of, 131 : Mouth Parts and Appendages, 132, 

 133; Gills, 134; How to arrange Parts, 135, 186; Moulting, 137; Young Lob- 

 ster, 138. 



CHAPTER XVIII. 



OiiABS, Hsrmit-Crads, and other Crustaceans . . . .138 



Common Crab, 189; Eggs, and how they cirry them, 140; Fin-like Lees. Oyster 

 Crab, 141 ; Hermit Crab, 142-144; Fresh-water Crustaceans, 144; Sowbug and 

 Eggs, 145, 146; Eegions of Crustacea, 146, 147. 



CHAPTER XIX. 

 Ciyalve Crustaceans and Barnacles ..... 14*7 



Characters of, 14R, 149 : Where found, 150 ; Appendages, how they secure thdr 

 Food, 151 ; Young Barnades. 152, 15-3. 



