INDEX 
References 
Cephalopods, group of mollusks 191 
Cere.Ill 
Cereal foods, source of 295 
Cereal insect investigations . . 525 
list of ........ 295 
Cerebellum, of amphibians . . 89 
of child.481 
Cerebral ganglion of mollusk . 188 
Cerebral hemisphere of frog . 88 
Cerebrum of man.466 
Certified milk, defined . . . 315 
Cesspools, source of danger . . 519 
Chameleon, a lizard .... 101 
Chara, food of crayfish ... 62 
Characteristics, of birds . 107 
of man’s skeleton .... 434 
Cheese, cottage.505 
example of protein .... 419 
flavor of ....... 311 
indirect product of plants . 376 
Cheese skipper.54 
Chemical change, defined . . 10 
Chemical compounds .... 13 
Chemicals, used to enrich soil, 
“ fertilizers ”.394 
Chemical terms, explanation 
Chemical test for carbon dioxide 229 
Cherry, wood of.352 
Chest cavity of man .... 445 
Chestnut, member of beech 
family.297 
trees, value of.351 
Chickadee, at suet station . . 118 
destroyer of eggs and larvae 
of Lepidoptera . . . . 114 
food of.42,114 
Chickweed, viability of . 223 
Child Welfare movement 518, 537 
Chimney swifts, feet of . . . 108 
China, dependence on rice . . 296 
Chinch bug, harmful insect 17 
Chipping sparrow, useful bird . 114 
food of. 42 
Chloride of lime.512 
Chloroform, example of anes¬ 
thetic .480 
action on lipoid.480 
Chlorophyll, in cells of pleuro- 
coccus.305 
Cholera.514 
7 
are to pages 
Chorpid, coat of eye .... 473 
Cicada, description of... . 33 
Cigarette smoking, effect of . 485 
Cilia, in air passage .... 446 
of paramecium.146 
of sperms of moss, use of . . 329 
Ciliated larva, of liver fluke . . 176 
Circular muscles, of earthworm 176 
Circulation, a fundamental 
function. 5 
effect of alcohol on ... . 456 
in crayfish.64 
in plants.281 
of mollusks.187 
Clam, example of mollusk . 9, 185 
laboratory study of. . . . 187 
oversight of, by Bureau of 
Fisheries.526 
Clams, artificial raising of . . 193 
edible.192 
fresh water.185 
Clasping base, of grass leaves . 288 
Classes of bees.46 
Classification, basis of, in 
Protozoa.141 
of birds.110 
of fruits.237 
of seeds.227 
of living things. 8 
Clean milk.313 
Clear cutting in forests . . . 362 
Cleistogamous flowers, defined 204 
Clematis.297 
member of crowfoot family . 297 
use of petioles in .... 290 
Climbing plants, thigmotropism 
in.286 
Climbing stems compared with 
trees.260 
Clitellum of earthworm . . . 182 
Cloaca of frog.86 
Clothing, obtained from mallow 
family.299 
source of. 299, 376 
Clotting of blood.451 
Clover affected by darkness 291 
member of pulse (bean) 
family.299 
Club moss, related to ferns . . 333 
spores of.339 
uses of.339 
