dencies, 292;
scope of, 293;
correction of popular misconceptions, 293-294;
discovery of hereditary laws, resulting in science of, 294-295;
rules of, 296;
instances of improvement from application of principles, 319-322;
three main lines of eugenic improvement, 323;
need of State Eugenic Boards, 323-324;
references on, 324.

Exercise, times for taking, and benefits, 16;
necessity for, to offset evils of a sedentary life, 94;
different forms of, 94;
after eating, 94;
outdoor, in winter, 95;
question of enthusiasm in, 95-96;
ideals in, 96;
of mind, will and emotions, 97-98;
dancing as, 99-100;
for overweight, 217;
for underweight, 220.

Exercises, breathing, 25-26;
breathing, for correcting evils of bad posture, 58;
corrective, for faulty posture, 62, 221-223;
for flat foot, 223.

Expectations of life, comparison of, in different localities, 290.

Eye-strain, evils resulting from, 93;
preventive measures, 93-94;
remote effects of, 122.

Fads, avoidance of, in matter of diet, 50.

Fans for keeping air in motion, 10.

Fat, function of, as a constituent of food, 35-36;
examples of, in common foods, 36;
suitable proportion of, in diet, 40;
as laxative food, 52;
in cheap foods, 131;
list of foods poor and rich in, 171;
fat-forming food to avoid in cases of overweight, 216;
forms of, for underweight, 220.

Fatigue, cautions regarding eating in a state of, 35;
relation of posture to, 57;
connection between colds and, 70, 276;
relaxation a remedy for, 101;
value of baths, for, 102;
avoidance of, in cases of underweight, 220.

Feet, misdirected, 59-60;
correct position of, in standing and walking, 60;
exercises for the, 223;
disturbances of health due to weak, 224;
means of detecting weak, 224-225.

Figs, laxative quality of, 52;
food value of, 179.

Fires, ventilation by wood or grate, 10.

Fish, a high-protein food, 38;
special objections to an abundance of, 39.

Fisher, George J., smoking tests conducted by, 259-260.

Flat foot, cause of, 59-60;
toeing-in and exercise of leg muscles as remedies for, 60;
corrective exercises for, 223;
consulting a specialist for, 223-224;
means of detecting, 224-225;
prevention of, 226.

Fleas, as spreaders of disease, 74.

Flesh eaters vers