INDEX 



Abomasum, 337 



Acanthocephala, 44 



Acanthopteri, 215 



Acarina, 108 



Acephala, 73 



Achromatin, 383 



Aorania, 194 



Aorididse, 137, 138 



Actinophrys, 9 



Actinozoa, 26 



Adaptation, wings of birds, 263 



-^gialitis vocifera, 291 



Agalenidae, 106 



Aglossa, 73, 233 



Agonoderus pallipes, 151 



Alaudidaj, 301 



Alces americanus, 342 



Aletia argillacea, 167 



Alligators, 253, 254 



Alluring colors of insects, 118 



Alopias vulpes, 205 



Alternation of generations, 8, 22 



Alyles obstetricans, 226 



Amblyopsidae, 214 



Amblystoma punclatum, 232 



Amaha terricola, 1 



Ampelidae, 304 



Amphibia, 221 



Amphioxus, 190, 194 



Ampullae, 53 



Anacanthini, 214 



Andrenidee, 183 



Anguillidae, 213 



Anis, 298 



Annulata, 65 



Anolis, 247 



Anomia, 74 



Anopheles, 4, 156 



rossii, 157 

 Anosia plexippus, 118, 171 

 Anseres, 285 

 Ant-eater, 319, 321, 324 



Antelopes, 345 

 Anthrenus scrophularicB, 153 

 Anthropoid apes, 375 

 Anthropoidea, 372, 373 

 Anthropopithecus erectus, 379 

 Antilocapra americana, 344 

 Ants, 174, 177 



agricultural, 180 



carpenter, 179 



communism of, 179 



corn-louse, 180 



intelligence of, 180 



mound-building, 179 



slave-making, 179 

 Anura, 224, 228 

 Aphididae, 140 

 Aphides, 124 

 Aphids, 143 

 Apidae, 183 

 Apis, 184 

 Apoda, 228 

 Aptera, 126 

 Apteria, 259 

 Arachnida, 103 

 Araneida, 104 

 Archceopteryx, 258, 369 

 Arclomys marmolla, 352 

 Ardea candidissima, 228 



egretta, 288 

 Aristotle, 386 

 Armadillos, 324 

 Aromochelys odoratus, 253 

 Arthropoda, 89 



classification of, 186 

 Arthrostraca, 102, 103 

 Artiodactyla, 332, 334 

 Ascaris lumbricoides, 43 



nigrovenosa, 41 

 Ascidians, 192 

 Assimilation, 7 

 Aslerias vulgaris, 54 

 Asteroidea, 54 



399 



