Part 70

Geological investigation, relation to biology, 22

Geology and ecology, 22

Glade, ants, 149 associations of ants, 149

Glover, Townend, entomological work, 73

Governmental publications, catalogues, 65

Grackles, 109

Grasshoppers, short-horned, associational groupings, 148 short-horned, habitats, 148

Grass-wrack, ecology of, in Danish waters, 89

Grave, fauna of the, 144

Green cells of Convoluta roscoffensis, bionomics, 127

Grosbeaks, food habits, 128

Gross environment, evolution, 86

Growth, 92, 93, 97 affected by environment, 100 influence of stimuli upon, 95 quahaug, 108 soft clam, 114 Venus mercenaria, 114

Guiana forest, struggle for life in, 124

Gull community, organization, 106, 134

Gypsy moth, 74 enemies of, 74

Habitats, 5, 60 affected by baseleveling, 86 amphibians, 148 animal, formed by plants, 89, 91 animals classified by, 134 ants, 137, 149 beetles, 145 bird preferences, 148 birds, 137 birds in summer, 146 cave, 112, 143, 144 classification, 59, 138, 139 Collembola, 136 crawfish, 116 dune, 139 fish of Illinois, 140 formed by river floods, 145 fresh-water, 86 grasshoppers, 148 history of their recognition, 138 inland, 91 insects, 128, 135 invertebrate, 146 lake, 87 lake beach, 147 lake fauna, 140 lake, for fish, 147 land, 86 mammals, 145 marine animals, 135, 136, 146 marsh for mollusks, 137 mollusks, 138, 145, 147 mollusks, classification, 138 mollusks of land and fresh water, classification, 138 moor, 139 Oregon sea beach, 149 Orthoptera, 137 oyster, 111, 112, 131, 132 parasitic fauna, 129 pond, 148 preferences of birds, 148 reptiles, 148 sand areas, 146 sand prairie, 139 sandy sea flats, 136, 137 sea bottom, 136 shore animals, 139 spiders, 125, 138 stream, 147, 148 three dimensions, 46 Turbellarian, 127

Habits, Amphipods, 119 Amphithoe longimana Smith, 113 cave-inhabiting bats, 112 Cicindelidæ, 121 fish, 63, 112 formation in crawfish, 106 formation in the turtle, 105 Humble-bee, 118 Leptinotarsa, 119 mammals, 118 mammals of North America, 107 mating period of spiders, 115 Plethodon, 117 salamanders, 119 solitary wasps of Texas, 113 spiders, 117, 118 squirrels, 115 tortoises, 116 Venus mercenaria, 114

Halictus, biocönose, 134 guests and parasites, 134

Hearing in fish, sense of, 116

Heath ants, 149

Hemiptera, seasonal succession, 141

Hemiptera-Heteroptera, catalogue of Nearctic, 71

Hibernation, 115 influence on animal parasites, 130 insects, 128

Holland, sandy flats of, animals, 136, 137

Homarus Americanus, behavior of immature stages, 105

Homing pigeons, methods, 113

Honey-bee, natural history, 109