Civilization, and nervousness, 406-408.

Cleanliness, 98.

Cohnheim, 364.

Colds, treatment of, 11, 12, 93-101;
cause of, 85-93;
how to catch, 101, 102;
their relation to rheumatism, 320, 321, 323, 324, 326, 327.

Colic, 4.

Color, in diagnosis, 70-74.

Congenital disease, 44, 45.

Coughing, use of, 11, 12.

Darwin, Charles, quoted, 425, 426.

Diagnosis, 55-82.

Diarrh[oe]a, use of, 5;
treatment of, 5.

Diphtheria, 222-242;
attacking the nervous system, 400, 401.

Disease, causes of, 3;
not absolute but relative, 14;
former conceptions of, 15-18;
organic and functional, 405, 406;
mental influence in, 411-437.

Drafts, 94, 95, 99.

Earache, 110.

Edison, Thomas A., 286.

Epilepsy, heredity and, 52, 53.

Erysipelas, 348.

Eustachian tubes, 109, 110.

Expectoration, 142, 143.

Eye-strain, 377.

Facial expression, in diagnosis, 62-70.

Fever, meaning of, 7, 8;
treatment of, 8-11.

Flick, Dr. Laurence, 96.

Fly, house, and typhoid, 210, 211.

Food-tube, the, 274-279.

Gait, in illness, 76-78.

Gall-bladder, 37.

Grip, the, 90.

Guinea-pig, a burnt offering, 222;
used in the discovery of the diphtheria antitoxin, 229-231.

Hand, the, in diagnosis, 73-75.

Harelip, 37.

Headache, purpose and meaning of, 12, 13, 367-376;
treatment of, 370, 371, 381-386;
from eye-strain, 377, 386;
from digestive disturbances, 377, 378;
sick headache, 378, 379, 381;
from stuffy rooms, 380;
from sluggish bowels and kidney trouble, 380;
from loss of sleep, 380, 381;
from nasal obstruction, 381;
rest the cure for, 382-384;
massage for the relief of, 385, 386;
the nerves affected in, 385, 386.

Heart, effect of rheumatism on, 314, 315.

Heredity, in health and disease, 32-54.

Hernia, 36.

Holmes, Oliver Wendell, 125.

Horses, and disease, 344, 345.

Hospitals, blood-poisoning and antisepsis in, 335-339.

Humoral theory of disease, 17, 18.

Huxley, Thomas Henry, quoted, 1, 112, 201.

Hysteria, 403, 406, 407, 435.

Imaginary illness, 415-422, 436.

Immunity, 93.

Indians, epidemics among, 251, 252.

Indifference of the dying, 434.

Infants, diagnosis in the case of, 81, 82.

Influenza, 90.

Insanity, heredity and, 52-54;
among savages and in civilization, 408, 409;