INDEX 



1G5 



Insects, 



cactus, 135 



carrion-feeding, 146 



collecting, 58 



environmental influences upon, 

 96, 97 



eyes, 110 



flowers and, 142, 143 



food, 128 



habitats, 128, 135 



hibernation, 128 



Illinois, 74 



in grave, 144 



influence in economy of nature, 

 135 



influenced by animal substances, 

 135 



influenced by climate, 135 



influenced by environment, 135 



influenced by man, 135 



influenced by plants, 135 



influenced by soil, 135 



initiating successions, 127 



instinct, 128 



life histories, 70, 73 



life histories in Lintner's New 

 York State entomologist's re- 

 ports, 74 



mimicry of South African, 128 



Missouri, 77 



motions, 128 



Neuropteroid, synopsis, cata- 

 logue, and bibliography, 71 



New Mexico, 148 



New York, 74 



noises, 128 



parasitic and other kinds of 

 castration in, 130 



parasitism, 129, 130 



preserving, 58 



protective adaptations against 

 birds by, 125 



seasonal succession, 141 



senses, 111 



social community, 135 



social life, 111 



societies, 128 



stratagems, 128 



study, 59 



systematic literature, 71 



warning colors of South African, 



128 

 Instinct, 



and intelligence, 120 



birds, 113 



blindness of, 103 



death-feigning, 113 



insects, 128 



Leptinotarsa, 119 



raccoons, 110 



spiders, 117 

 Instruments, 57, 59 

 Integrative action of nervous sys- 

 tem, 98 

 Intelligence, 



and imitation in birds, 117 



and instinct, 120 



animal, of the raccoon, 111 



birds, 113 



evolution of animal, 114 



nature and development of ani- 

 mal, 115 



raccoons, 110, 111 

 Interactions of organisms, 49, 123 

 Internal relations, 1 

 Interpretation, dynamical, 82 

 Interrelations, 5 



between forests and insects, 

 127 



of the social community, 131 



parasitic, of the bee community, 



139 



Introducing noxious animals, 124 

 Invertebrate animals of Vineyard 



Sound, 136 

 Invertebrate fauna of Isle Royale, 



ecological relations, 146 

 Invertebrates, 



census, 62 



life histories, 70, 136 



marine, 136, 146 

 Investigation, methods of scientific, 



56 



Iris versicolor L., fruiting, 142 

 Isle Royale, 



as biotic environment, 91 



birds, ecological succession, 124, 

 133 



birds' habitats, 148 



ecology of Coleoptera, 145 



