fatigued, 35;
cellulose supplied by fibrous, 41;
vitamins supplied by, 42;
acids supplied by, 43;
among the best foods, 48;
a laxative food, 52;
value to teeth at end of a meal, 220.

Fruit acids, cleansing the mouth with, 86.

Fruits, table of food values of, 177, 179.

Fuel value, of common foods, 171, 175-183;
of ready-to-serve foods, 184-190.

Galton, Sir Francis, identified with eugenic movement, 295.

Game as food, 48.

Games, for giving exercise, 95;
advantages possessed by, as recreation, 99.

Garters, constriction from, 16.

Germany, consumption of alcohol in, 236.
_See_ Prussia.

Germs, origin of colds in, 8-9, 70-71, 272;
destroyed by sunlight, 14;
clearing food of, 43;
infections through, 69-78.

Gladstone, W. E., noted for mastication of food, 46.

Glucose, a cheap source of starch and sugar, 131.

Gonorrhea, sterilizing influence of, 78.

Grate fires as ventilators, 10.

Greeks, high ideals of ancient, 4;
perfect physical poise depicted in sculptures of, 59;
ideal of, in sports, 96.

Greens, laxative quality of, 52.

Grippe, avoidance of exposure to infection from, 70.

Guinea pigs, illustration from, of action of hereditary traits, 313-316.

Gums, cleansing the, 84-85.

Habits, as to defecation, 55;
overcoming acquired, to lead a hygienic life, 134-135.

"Habitus enteroptoticus," posture called, 58.

Happiness, habit of, 115.

Hard foods, benefits of, 40-41.

Hats, ill effects of tight, 16.

Headache, sometimes caused by constipation, 51;
sometimes due to a slouching posture, 57.

Health, present world-wide movement for conservation of, 2;
influence of, on character, 105-107;
mental rewards from, 107-108;
influence of the mind on, 108-109;
cost of good, 127-128;
possibilities of attainment, 141-142.

Health foods and drinks, 3.

Heart, diseases of, due to focal infection, 82;
common causes of troubles of, 90;
effect of alcohol on, 240-241;
effect of tobacco on, 250, 259-260, 263, 267;
death rates from diseases of, 284, 285.

Heat, enervating effect of, 11.

Heating systems, ventilation and, 10-11.

Hens, influence of mind on health illustrated by, 108-109.

Heredity, dependence of health of individual on, 164-165;
eugenic improvement attainable through control of, 293;
discovery of