10 
INDEX 
References 
Curly maple.352 
Currant, example of berry . . 233 
Currant worms, caterpillars. . 28 
Cuticle of paramecium . . . 146 
Cutin of leaf.283 
Cuts, treatment of.455 
Cuttlefish, a cephalopod . . . 191 
compared with squid . . . 192 
Cutworms, harmful insect . . 41 
Cyclops, a small crustacean . . 65 
Cyme, form of inflorescence . 215 
Cypress trees, conifers 253, 352, 345 
Cypris.65 
Cytoplasm, of pleurococcus . . 305 
of amoeba.144 
of nerve cells.466 
of protoplasm. 7 
D 
Daddy-long-legs, an arachnid .' 66 
Dairy cow, discussed . . . . 131 
Daisy, a common weed . . . 301 
a composite.301 
Dandelion, a common weed . 301 
a composite.301 
Daphnia.65 
Darkness, effect of, on clover 
and oxalis.291 
Dead matter simplified by bac¬ 
teria .310 
Deafness, “ cures ” .... 503 
Death caused by insects ... 29 
Deaths among infants . . . 513 
Deaths from communicable 
diseases.497 
Decay, caused by bacteria . . 310 
Deciduous leaves, defined . . 283 
Decomposition caused by bac¬ 
teria .310 
Defects in hearing.476 
Definite annual growth . . . 265 
Definitions of common biologi¬ 
cal terms.1-8 
Dehiscent fruits, defined. . . 237 
forms of.237 
Deliquescent stems . . . 265,341 
Denuded hills, cause of 
freshets. 349, 350 
Deodorizers, not disinfectants . 512 
are to pages 
Department of Agriculture of 
United States, inspecting 
meat.500 
investigations concerning cot¬ 
tony cushion scale ... 34 
Dependence, of fungi .... 320 
of mistletoe.369 
Dermatogen.247 
Dermis, defined.459 
Desert plants, living conditions 371 
Deserts, habitat of plants . . 371 
Determinate inflorescence . . 216 
Development of amphibians . 90 
Development of tadpole . . 91, 92 
Devices for regulating trans¬ 
piration .283 
Devil’s paint brush, a weed . . 272 
Dew, use by sperms of mosses . 329 
Diamond-shaped markings of 
marchantia.331 
Diaphragm, of man .... 408 
characteristic of mammals . 445 
passage of oesophagus 
through.408 
Diastase, enzyme of fermenta¬ 
tion .. . 281 
Dicotyledons, group of plants 9, 227 
represented by bean, squash, 
etc.226 
seeds of.227 
Diet.418,410 
Digestion, a life process ... 5 
completed in intestine . . . 412. 
described.411 
effect of alcohol on ... 430 
in leaves of Venus’s flytrap . 367 
in plants.281 
laboratory study of. . . . 413 
of food by pleurococcus . . 305 
of food in leaf.281 
of food in seed.229 
of starfish.171 
Digestive fluids, of man . .411, 412 
Digestive organs, of crayfish 63 
of frog.85 
of man, summary of ... 431 
Digestive system of animals, 
student report on . . . 413 
Digestive system of clam . . 187 
Dill, member of parsley family 300 
Dioecious flower, defined . . 204 
