Digestion, 130-172. Hygiene of, 160. Nature of, 130. Not a simple process, 131. Of fat, 156. Purpose of, 177. Stomach, 148. Digestive fluids, 132. Digestive organs, 160. Table of, 138. Digestive processes, 130, 141. Illustrated, 137. Diphtheria, 94, 405. Care after, 211. Disaccharides, 120. Disease, 392-412. Causes of, 393. Eruptive, 405. Precautions in recovery from, 407. Prevention of, 393. Dislocations, 239. Dorsal-root ganglia, 295. Drill, "setting up," 237. Drugs, effects of, 35, 55, 129, 332. Duodenum, 151. Dura, 299. Ear, 358. Hygiene of, 365. To demonstrate, 369. Ear drum, 359. Efferent neurons, 296. Element, defined, 104. Elevators of the ribs, 87. Emetics, 151. Emotional states, effects of, 330. End bulbs, 342. Endocardium, 42. Endolymph, 361. End-plate, 244. End-to-end connections, 286. Energy, 107, 186-196. Bodily control of, 192. From sun to cells, 191. How plants store sun’s, 189. Increasing one’s bodily, 194. In food and oxygen, 190. Kinds of, 186. Methods of storing, 187, 188. Transformation of, in muscle, 248, 249. Enzymes, 132, 155. Of the tissues, 184. Epidermis, 264, 266. Epiglottis, 80, 354. Epithelium, 139. Eruptive diseases, 405. Esophagus, 146. Eustachian tube, 359. Excessive reading, 331. Excitant impulse, 305. Excretion, 197-213. Defined, 18. Necessity for, 201. Exercise, 256, 257, 328, 409. General rules for, 259. Results of, 257. Exhaustion, nervous, 211. Results of, 195. External ear, 358. External stimuli, action of, 307. Eye, 370-391. Eyeball, 373. Chambers of, 377. Focusing power of, 378. Movements of, 381. Eyelids, 373. Eyes, Care of, 386. Removal of foreign bodies from, 387, Strong chemicals in, 388. Eye strain, 211. And disease, 385. Fat, 30, 149, 162. Digestion of, 156. Emulsification of, 157. Purpose served by, 121. Route taken by, 175. Tests for, 137. Where stored, 178. Fatty acid, 156. Fenestra ovalis, 361. Fenestra rotunda, 363. Ferments, _see_ Enzymes. Fibrin, 31. Fibrin ferment, 32. Fibrinogen, 30, 31. Fissures, 289. Food, 117-137. Advantages of coarse, 167. Classes of, 118, 119. Composition of, 124. Dangers from impure, 165. Defined, 117. Elements supplied by, 134. Excess of proteid, 208. Frequency of taking, 165. Materials, table of, 126, 126. Nitrogenous, 119. Order of taking, 161. Preparation of, 164. Purity of, 128. Quantity of, 164. Simple, 118. Variety, 128. With reference to digestive changes, 132. Foot lever, diagram of, 253. Foot-pound, 196. Foot-wear, hygienic, 238. Fractures, treatment of, 239. Fumigation, 400. Furniture, school, 236. Gall bladder, 154. Ganglia, 281. Dorsal-root, 295. Sympathetic, 298. Gastric glands, 147. Gastric juice, to illustrate action of, 172. Gelatine, 218. Germ diseases, avoidance of, 394. Germs, 29, 394, 395. How spread, 395.