Antitoxins, or anti-bodies, 9, 93, 94, 199, 200; discovery and use of the diphtheria antitoxin, 230-233, 236, 242, 401; tetanus antitoxin, 345, 346, 398. Apoplexy, 40, 402. Appendicitis, 269-288. Appendix, vermiform, 35, 36, 268-270, 273-279. Asepsis, 333. Asthmatics, 328. Attitude, the upright, 76. Autointoxication, 376. Bacilli. _See_ Bacteria. Bacteria, abundance of, in the body, 10, 99. Bang, Professor, 148. Bath, the cold, 98. Bile, in vomiting, 379. Bites, danger from, 342. Blood, coagulation of, 39, 40. Blood-corpuscles, 24-29. Blood-poisoning, 331-349. Bloodgood, Dr. J. C., 272. Bones, nature of, 20, 21. Boswell, James, 88. Bridge, Dr. Norman, 95. Caecum, 274-278. Cancer, a rebellion of the cells, 42, 351; heredity and, 50, 51; individuality of, 350; probable nature of, 351; death-rate from, 352, 353; natural history of, 353-364; not communicable, 357, 358; vain search for a parasite, 359, 360; a disease of senility, 363, 364; problems of prevention and cure, 365, 366. Carriage, in illness, 76. Cattani, 398. Cellular theory of disease, 18, 19. Cerebro-spinal meningitis, 397. Chantemesse, 221. Children's diseases, importance of, 243-245; prevention of, 245; dangerous results of, 245, 246; effect on growth and development, 247; reasons for, 248-250; occasional severity of, 251-254; taming of, 253, 254; causes of, 254, 255; treatment of, 255, 256; symptoms of, 256, 257; the three chief, 257-266. Cities, disease and death-rate in, 159-165. 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.