Blood cell, 189.
Blood serum,

Boa constrictor, skull of, 289.

Calyx, 31.
Cambium, 109.

Cap of mushroom, 162.

Bodily heat, effect of alcohol on, 398; Capillaries, changes in blood in, 355;
passage of food through walls of,

how produced, 348;
regulation of, 397;

relation to work, 396.
Body, a machine, 317.

355, 358;
position of, 355.
Capsule, 54;

Bone, structure of, 375, 376;
fracture of, 379;

of moss, 157.
Carbohydrates, 21, 318.
Carbon, 17.

Carbon dioxide, in photosynthesis,

345.

microscopic structure of, 377;
substances present in, 376.
Bone-making cell, 189.

Botany defined, 11.

Brain, action of parts of, 407;
effect of alcohol upon, 410;

of frog, 402;

of man, 404, 407;

rate of, in man, 383;

relation of exercise to, 389;
relation of tight clothing to, 388.
Bruises, treatment of, 360.
Bryophytes, 151, 156.
Buccal cavity, in frog, 331;
in man, 332;

openings from, 334.

Bud, defined, 100;

effect of, on shape of tree, 102;

necessity of food, rest, and fresh | Carp, anatomy of, 273.

air to, 410;

Carpel, 31.

necessity of sleep to, 410.

Cecropia moth, 237.
388; Cell, animal, 27;

Breathing, hygienic habits of,

mechanics of, 382;

as a unit, 183;
defined, 25;

lateral, 102;

opening of, 101, 105;

protection of, 105;

structure of, 100, 101;
terminal, 102.
Budding, 116;

in yeast, 166.
Budding hydra, 195.
Bugs, characteristics of, 246;
economic importance of, 247.
Bulb, 119.

Bumblebee, 37, 39, 249.
Burns, treatment of, 398.

Calorimeter, Atwater's, 320.
Calyptra, 157.

HUNTER'S BIOL. - 28

131;

test for, 18.

Carnivora, economic importance of,

314;

examples of, 312;
skull of, 313.

example of plant (yeast), 166;
parts of, 25, 26;

sizes and shapes of, 27.
Centiped, poisonous, 257.
Cephalopods, 267.
Cephalothorax, 215.
Cercariæ, 213.

Cerebrum, function of, 406;
position of, 405.
Chelipeds, 215, 220.

Chemical element, defined, 15.
Chemistry, defined, 15.
Chestnut, 55.

Chimney swift, nest of, 298.
Chlorophyll bodies in photosynthesis,

130.

Chloroplasts, 130.
Chromosomes, 25.

Cicada, life history of, 247.
Cigarettes, poisons in, 387.
Cilia, on paramecium, 180.
Circulation, effect of alcohol on, 360;
effect of exercise on, 360;.
in frog, 350, 351;

in frog's foot, 353, 354.

Circulation in man, portal, 357;
pulmonary, 356, 357;
systemic, 356, 357.

Clam, economic importance of, 264;
"long," 264;

"round," 264.

Classification of plants, 150.
Cleistogamous flower, 42.
Clitellum, 208, 211.
Club moss, 156.
Cluster cup, 165.
Cnidoblasts, 196.
Cocoon, 237.

Colenterates, alternation of genera-

tions in, 199;
classification of, 202;

division of labor in, 197;
meaning of, 195;

organs of offense in, 196.

Coleoptera, 244.

Colloids, 337.

Combustion defined, 16.
Communal life, of ants, 253;

of bee, 250;

of bumblebee, 249.

Composite head of flower, 48.
Composition of water, 18.
Conjugation, defined, 161;
in mold, 161;

in paramecium, 181;
in Spirogyra, 176.

economic importance of, 201;
formation of, 201;
madreporic, 201.

Coral reefs, 202.

Corolla in cross-pollination, 39.
Corpuscles, colorless, 346, 347;
red, 345, 346;

activities of, 215;
circulation in, 218;
development of, 219;
digestion in, 219;
excretion in, 219;
habitat of, 215;

Comparison, between earthworm and

mouth parts of, 217;

hydra, 210;

nervous system of, 219;

between skeleton of child and of
adult, 377;

protective coloration of, 215.
Crinoid, 207.

between skeleton of man and of Crustaceans, classes of, 225;
frog, 371;

between starch making and mill-
ing, 131.

Corky layer, use of (Exp.), 110.
Corn, production of, 62, 63.
Corolla, 31.

tractile, 395, 419.

Cotton, distribution of, 64.
Cotton-boll weevil, 245.
Cotyledons, 66;

as foliage leaves, 70;
food in, 67.

Crab, asymmetry in hermit, 223;
edible blue, 222;

fiddler, 223;

hermit, 223;

metamorphosis of, 223;

spider, 224;

symbiosis between sea anemone
and, 224.

Crane, sandbill, 305.
Crayfish, 215, 218;

compared with insects, 227; .
degenerate, 225, 226;

habitat of, 224;

parasitic, 225;

structures common to all, 226.

Cryptogams, 151.

Crystalloid, 337.

Connective tissue cells, 189.
Coral, asexual reproduction in, 201; Cytoplasm, 26.
cup, 201;

Cuts, treatment of, 360.
Cyclops, 225.
Cyme, 47.

Damsel fly, 244.

Deer, Virginia, 315.

Degenerate crustaceans, 225, 226.
Deliquescent trunk, 102.

Delirium tremens, 411.
Dendrites, 402.

Desert conditions, 143, 145, 147.

Development, of earthworm, 211;
of frog, 280;
of mosquito, 242.

Earthworm, locomotion, 209;
nephridia, 209, 210;
reactions of, 209;
regeneration in, 211;

respiration in, 211.

Dichogamy, 46.

Eating, hygienic habits of, 342.
Economic importance, of bugs, 247;
of flies, 242;

Dicotyledons, defined, 75;

fibrovascular bundle of, 109;
parts of stem of, 105, 108.

of mollusks, 268;
of toads, 283.

Diet, mixed dietary the best, 321, Economic value of fruits, 62;

Diastase, action on starch (Exp.), 73.
Diastole, 353.
Diatoms, 177.

323.

Digestion, defined, 330;

in corn cotyledon, 75;
in stem, 112;

of starch, 334;

organs of, in man, 330;
purpose of, 330.

Dimorphism in flowers, 46;

sexual, 235, 236, 246.
Diœcious flowers, 45.
Dipsomania, 411.
Diptera, 240.

Disk flowers, 49.
Dislocations, 379.

Division of labor, in Pandorina, 187;

in the hive, 250;
in Volvox, 187.
Dragon fly, 243.
Drawing, 13.
Drink habit, 416.
Drupe, 53.

Eagle, golden, 304.
Ear, care of, 422;

in man, 421;
inner, 421, 422;
middle, 421;

structure of, 421.

Earthworm, 208;

bilateral symmetry in, 208;

blood course of, 210;

210;

Darwin on, 210;
development of, 211;
digestive tract, 209, 210;
feeding habits, 209.

Enzyme, amolypsin, 339;

diastase, 73;

lipase, 339;

pepsin, 336;

ptyalin, 334;

rennin, 337;
trypsin, 339.

Epidermis, 129, 130;

human skin, 394, 395.
Epithelial cells, 189.
Equisetum, 156.

body cavity, 210;

comparison between hydra and, Eustachian tube, in frog, 279.

Excretion, organs of, 391.

arrangement of, 71.

Emulsion, effect of pancreatic fluid

upon, 339;

how produced, 339;

milk an, 339.
Endoderm, 193.
Endoplasm, 182.

Energy, sun a source of, 128.
Entomostraca, 225.

Excurrent trunk, 102.
Experiment, 12.
Eye, of insects, 230;
blind spot, 426.