CONTENTS. 



PAGE 



INTRODUCTION 1 



Equipment 2 



Material for Dissection 4 



Reference Books 10 



LABORATORY WORK 15 



Dogfish 15 



Teleost 22 



Comparisons 30 



Frog 32 



Tadpole 41 



Comparisons 43 



Turtle 44 



Snake 47 



Bird 48 



Comparisons 52 



Rat 53 



Comparisons 64 



Crayfish or Lobster 67 



Sow-bug 73 



Comparisons. ; 75 



Grasshopper 76 



Comparisons 82 



Cricket 84 



June-bug 85 



Dragon-fly 86 



Bee or Wasp 87 



Comparisons 88 



Squash-bug 89 



vii 



