Part 61

Castration, parasitic, in insects, 130

Catalogues of governmental publications, 65

Caterpillars, 74 reactions, 106

Cave associations, 143

Cave environment, 144, 145

Cave fauna, European, 144 origin of blind species, 144

Cave habitats, 112, 144

Cave-inhabiting bats, habits and sensory adaptations, 112

Cave life, effect on Arthropods, 101 effect on nutrition, 101 effect on sense organs, 101

Cell and its medium, chemical studies, 88

Census, bird, 59 invertebrates, 62 of four square feet, 58, 62

Centers of dispersal for beetles of North America, 145

Cerambycidæ, food habits, 72

Cestoda and Cestodaria, index to literature of, 129

Chætognatha, classification, 115 distribution vertically, 115 San Diego region, 115

Challenger, 23

Change, laws of, 79

Changes, in fresh-water habitats, sequence, 86

Changes, in land habitats, sequence, 86

Chemical stimulations, responses to, 97

Chemical studies on the cell and its medium, 88

Chicago, physiographic ecology, 88

Chicago region, animal communities, 134

Chinch-bug, 20

Chorology, 2

Chrysomelid beetles, evolution, 119

Chrysomelidæ, aquatic, 75 food habits, 72

Cicindela, 90