INDEX 



159 



Echinoderms, food, 126 

 Ecological catalogue of crawfish, 



113 



Ecological criteria, 16 

 Ecological distribution of birds of 



Isle Royale, 148 



Ecological features of evolution, 21 

 Ecological ideas, educational value, 



146 

 Ecological organization of museums, 



22 

 Ecological relations, 



of entomophilous flora and an- 

 thophilous insect fauna of Illi- 

 nois, 142 

 of invertebrate fauna of Isle 



Royale, 146 

 Ecological study, 



of cave plankton, Shawnee Cave, 



145 



of lake plankton, 140 

 Ecological succession, 21, 90, 101, 



124 



birds, 124, 133 

 causes in ponds, 133 

 fish in ponds and streams, 133 

 land animals, 133 

 mammals of Isle Royale, 145 

 on an oyster reef, 1 12 

 Ecological surveys, 23, 24, 67 

 Ecological training for surveys, 32 

 Ecology, 1, 2, 18, 19, 20, 60 

 and economic problems, 114 

 and geology, 22 

 art of, 33 

 associational, 24 

 fish of Walnut Lake, 147 

 history, 133, 138 

 point of view, 8 

 relation to economic entomology, 



21 



relation to geology and paleon- 

 tology, 10 



relation to man, 10, 11 

 relation to physiology, 8 

 relation to sociology, 10 

 relation to teaching, 13, 14 

 research methods, 88 

 Economic entomology, 29, 71, 74, 75 

 bibliography, 74, 75 



bibliography of American, 71, 75 

 relation to ecology, 21 

 Economic problems and ecology, 114 

 Economic value, 

 of birds, 126 

 of Pecten irradians, 108 

 Economic zoologist, 29 

 Economic zoology, 29 

 Educational value of ecological 



ideas, 146 

 Effects, similar, of diverse stimuli, 



98 



Egg-laying crawfish, 108 

 Egg-laying sites, Orthoptera, 137 

 Eggs, 



collecting birds', 58 

 of birds of North America, 109 

 Elbe River, fauna of lower, 138 

 Emergency surgery, 65 

 Emotion in pigeons, 110 

 Enchytrseidae, 58 

 Encroachments of civilization, 26 

 Enemies, protection of animals 



from, 125 



English in science, better, 67 

 English sparrow, 28, 117 



psychology, 117 

 Entomological Commission, 



of U. S., report on cotton and boll 



worm, 77 



of U. S., report on Rocky Moun- 

 tain locust, 76 

 of U. S., report on western 



cricket, 77 

 Entomological ecology of Indian 



corn plant, 132 

 Entomological work of Townend 



Glover, 73 

 Entomological writings of A. S. 



Packard, 74 

 Entomologists' reports, 

 Illinois, index, 74 

 Missouri, 77 

 New York, 74 

 Entomology, 



bibliography of American eco- 

 nomic, 71, 75 



catalogue of publications on, 71 

 economic, see Economic ento- 

 mology 



