176 



INDEX 



Succession, 



beetles, 145 



ecological, 101 



ecological, birds, 21, 124, 133 



ecological, in the grave, 144 



ecological, on oyster reef, 112 



in stages of decay, 144, 146 



mammal, 145 



mollusks, 137 



seasonal, 140 



Successions, initiated by insects, 127 

 Suggestions to authors, 68 

 Summer-bird life near Havana, 



Illinois, 146 



Surgery, emergency, 65 

 Surveying, 65 

 Surveys, 



ecological, 23, 67 



ecological training for, 32 



natural history, 23, 30 



non-ecological, 31 

 Sycotypus eating oysters, mussels, 



and clams, 110 

 Symbiosis, 127, 128, 130 



Talorchestia longicornis, habits and 



life history, 119 

 Tanganyika problem, 89 

 Taste, fish's organ of, 112 

 Taxonomy, 54 



relation to ecology, 8 

 Teaching, relation to ecology, 13 

 Technique, 15, 57 



of fresh-water biology, 62 



scientific, 55 

 Temperature, 



effect of extremes, 99 



in open and wooded areas, 91 



influence on digestion of cold- 

 blooded vertebrates, 100 



lowering of, and loss of water, 99 



physiological effects of high tem- 

 perature, 99 

 Termites, Arthropods living with, 



130 

 Terns, noddy and sooty, behavior, 



120 

 Terrapin, diamond-back, 



cultivation, 110 



natural history, 110 



Texas, 



habits of solitary wasps, 113 



wasps, solitary, habits, 113 

 Theory, use, 40 

 Thermocline, biological significance, 



87 

 Tiger beetles, 



larval habits, 118 



life histories, 118 



relation of distribution to plant 



succession, 90 

 Tipulidae, 76 

 Toad, American, 100 

 Tomahawk Lake, Wis., Mollusca of, 



137 

 Tortoise, 



Florida land, 135 



habits, 116 



perception of space, 121 

 Tracks and tracking, 58 

 Trapping, 39, 60 

 Tree frogs, 



behavior, 112 



color changes, 112 

 Trees, 



insects affecting, 74 

 Trematoda and trematode diseases, 



index to literature, 129 

 Trial and error, 104 

 Tubicolous Annelids, behavior, 112 

 Turbellarian, 



behavior, 127 



ecology, 127 



food, 127 



habitat, 127 

 Turtles, 



cultivation, 110 



discriminative ability of painted, 

 109 



food, 129 



formation of habits, 105 



natural history, 110 



Pennsylvania, 129 

 Turtur risorius, 110 

 Types of eyes, image-forming 



powers of various, 110 

 Typography, 68 



Use of theory, 40 

 Utah, 55 



