CONTENTS. 



CHAPTER I. 

 Hairs, Feathers, and Scales . 



PAGE 



CHAPTER II. 

 Blood .25 



CHAPTER III. 

 Mollusca: their Shells, Tongues, Etes, and Ears . . 3£ 



CHAPTER IV. 

 Sea-mats and Shelly Corallines &> 



CHAPTER V. 

 Insects : Wings and their Appendages 70 



CHAPTER VI. 

 Insects : their Breathing Organs 93 



CHAPTER VII. 

 Insects : their Feet 100 



CHAPTER VIII. 

 Insects : their Stings and Ovipositors 125- 



CHAPTER IX. 

 Insects : their Mouths 138. 



/ & b~^o 



