INDEX 



227 



Gills, of mussel, 100; of fish, 115. 



Gnawing mammals, 203. 



Gopher, pouched, 204. 



Gorilla, 221. 



Grantia, 18. 



Grasshopper, 70. 



Gypsy moth, 95. 



Hands, defined, 220. 

 Heart, insect, 77. 

 Hemiptera, 82. 

 Heredity, 147, 153. 

 Hessian fly, 95. 

 Horned toad, 140. 

 House fly, 92, 93. 

 Human species, 220. 

 Hydra, 22. 

 Hydranth, 29. 

 Hydroid, 28, 29, 30. 

 Hymenoptera, 82. 

 Hypostome, 23. 



Ichneumon fly, 89. 

 Imago, 81. 

 Infusoria, 16. 

 Inorganic, 1. 

 Insecticides, 95. 



Insects, 73, 75; biting, 82; classi- 

 fied, 82; sucking; 82. 

 Instinct, 80, 121. 



Jacana, Mexican, 178. 

 Jay, blue, 181. 

 Jelly fish, 29, 30. 



Kangaroo, 198. 



Kidneys, of fish, 117; of insects, 

 76; of mussel, 102; of worm, 45. 



Labial palpi, 68, 74, 101. 

 Labium, 68, 74. 

 Labrum, 68, 74. 



Lady bug, 91. 



Lamellibranch,107. 



Lark, meadow, 182; sky, 179. 



Larva, 81. 



Lasso cell, 34. 



Leg, of bird, 152; of horse, 210; 



of insect, 74. 

 Lemur, 220. 

 Lepidoptera, 82, 87. 

 Louse, 92, 93. 

 Lungs, of bird, 165. 



Madreporite, 35. 



Mammal, 184; classified, 193; 



defined, 189. 

 Manatee, 209. 

 Mandibles, 68, 74. 

 Mantis, praying, 3. 

 Mantle, 99. 

 Maxilla?, 68, 74. 

 Maxillary palpi, 68, 74. 

 May beetle, 90, 91. 

 May fly, 83. 



Measuring worm, 81, 84. 

 Medusa, 31. 

 Mesoglea, 26. 

 Metamorphosis of insect, 80, 81, 



82. 

 Metazoan, 1. 



Migration of birds, 171, 173. 

 Mimicry, 146. 

 Moccasin, 145. 

 Mole, 201. 

 Mollusc, 9, 97, 125. 

 Moulting, 69, 174. 

 Monkey, 220. 

 Morula, 7. 

 Mosquito, 92, 93, 96. 

 Moth, 83. 



Mother-of-pearl, 99. 

 Mussel, 96, 103. 



