xii CONTENTS. 



CHAPTER VI. 



PAGE 



CLAMS, MUSSELS, AND OYSTERS . . . . . .37 



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

 they eat, 38, 39 ; Ligament, and Internal Markings of Shell, 40 ; Byssus, 42 ; 

 Siphons! Tubes separate, 44 ; Oysters, 45 ; Heart. Palpi. Liver, Gills, 'Mouth of 

 Oyster, 40, 47 ; Kelations between Clams, Mussels, and Snails, 48. 



CHAPTER VII. 



COLLECTING INSECTS . . . . . . . .49 



How to collect and arrange, 49 ; To make Insects' Boxes, 50 ; To kill and pin In- 

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



CHAPTER VIII. 



PARTS OF AN INSECT . . . . . . .53 



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

 Body, 58 ; Wings, 5i>, 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, G5 ; Beetle dissected, Mouth-parts, 66-69 ; Appendages of the 

 Segments, 70. 



CHAPTER X. 



GROWTH OF INSECTS . . . . . . .71 



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

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

 Incomplete Changes, 81 ; Complete and Incomplete Metamorphosis, 82 ; Differ- 

 ence between Larva and True Worms, 83-85. 



CHAPTER XI. 



HABITS AND STRUCTURE OF INSECTS . . . . .85 



Mud- wasp, 5-87 ; Mosquito, 88. 



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; Stridulatiou of Grasshopper, 95, 96. 



