INDEX 



Aboral surface, 35. 



Acephala, 107. 



Adaptation to environment, 148, 



185, 201, 205, 207. 

 Ambulacral, 36. 

 Amceba, 10. 

 Anadon, 98. 

 Antelope, 215. 

 Antenna;, 68, 87. 

 Ant-eater, giant, 199; spiny, 196. 

 Ant-lion, 91. 

 Ape, 220. 

 Aptera, 82. 

 Apteryx, 174. 

 Aquarium, 17. 

 Argonaut, paper, 107. 

 Armadillo, 200. 

 Arthropoda, 9, 125. 



Bat, 202. 



Batrachia, 126. 



Beaver, 204. 



Bedbug, 92, 93. 



Bee, bumble, 89 ; honey, 88. 



Beetle, 90, 91. 



Big-headed turtle, 149. 



Bilateral, 34, 49, 98. 



Bill of bird, 151. 



Biology denned, 1. 



Birds, 150. 



Blood, of insects, 78. 



Boll weevil, 95, 96. 



Boll worm, 95, 96. 



Brain, of fish, 118. 



Breathing, of bird, 161; of in- 

 sect, 76. 

 Bureau of entomology, 95. 

 Butterfly, 83. 



Cabbage butterfly, 84, 86, 87. 



Camel, 214. 



Candle, 5. 



Carbon, dioxide, 24. 



Carp, 112, 117, 123. 



Cat, 184. 



Caterpillar, tent, 84. 



Cell, 6, 7. 



Celom, 46. 



Cephalopod, 106. 



Chelonia, 143. 



Chimpanzee, 219, 221. 



Chirping, 66. 



Chitin, 77. 



Cilia, 14, 20, 101, 103. 



Ciliated chamber, 17. 



Circulation, in amoeba, 12 ; in 



insect, 77; in fish, 117. 

 Clam, hardshell, 104; softshell, 



104. 

 Class, 9. 

 Classification, of animals, 8, 125 ; 



of birds, 177; insects, 82; 



mammals, 193. 

 Click-beetle, 91. 

 Clitellum, 43, 47. 

 Cloaca, 18. 



Clothes moth, 84, 92, 93. 

 Cockroach, 71. 



225 



