﻿Xd CONTENTS. 



CHAPTER VI. 



PAGE 



Clams, Mussels, and Oysters - . . . . .37 



Salt-water Bivalves, 37; Parts of a Clam, Siphons, Currents of Water, and how 

 they eat, 3S, 89 ; Ligament, and Internal Markings of Shell, 40 ; Byssus, 4'2 ; 

 Siphonal Tubes separate, 44 ; Oysters, 45 ; Heart, Palpi. Liver. Gills, Mouth of 

 Oyster, 46, 4T ; Eelations between Clams, Mussels, and Snails, 48. 



CHAPTER VII. 



Collecting Insects . . . . . . . .49 



IIow to collect and arrange, 49 ; To make Injects" Boxes, 50 ; To kill and pin In- 

 sects, 51, 52 ; Where to find Insects, t2, 53. 



CHAPTER VIII. 

 Parts of an Insect . . . . . . .53 



True Insects or Hexapods, Mouth-parts, 55 ; Antennae, Eyes, 56, 57 ; Segions of 

 Body, 58 ; Wings, 59, 60 ; Position of Wings, 61 ; How to Spread the Wings, 

 62 ; Beetle spread, 63 ; Abdomen, 63, 64. 



CHAPTER IX. 



Parts of an Insect (continued) . . . . . .65 



Parts of the Thorax, C5 ; Beetle dissected, Mouth-parts, CC-G9 ; Appendages of thri 

 Segments, TO. 



CHAPTER X. 



Growth of Insects . . . . . . .71 



Collecting Eggs, Caterpillars, Chrysalides, 71, 72 ; Where to collect, 73; Eggs, 74; 

 Eaising Caterpillars, 75, 77; Chrysahs, 78. 79; Development of Chrysalis, 80; 

 Incomplete Changes, 81 ; Complete and Incomplete Metamorphosis, &'2 ; Differ- 

 ence between Larva and True Worms, 83-85. 



CHAPTER XI, 

 Habits and Structure op Insects . . . . .85 



Mud-wasp, S5-S7; Mosquito, 83. 



CHAPTER XII. 



Habits and Structure of Insects (continued) . , . .89 



Young Grasshopper, 89 ; Cast-off Skin of Grasshopper, 90 ; Curious Accidents. 91 ; 

 Air-tubes, 92 ; How Insects breathe, and how some rest, 93 ; Sounds produced 

 by Insects, 94; Stridulation of Grasshopper, 95, 96. 



