Cereals, 42. _See also_ Breakfast Foods _and_ Oatmeal. Cerebellum, 270. Cheese, 39. Chemical change, 42. Chickenpox, 290. Children's diseases, 289-291; from dirty milk, 37. China, wearing nails long in, 173. Chincon, Countess of, 301. Chloral, 97. Chloroform, 97, 199. Chlorophyll, 5. Choking, cause of, 135. Cider, 94. Cigarette habit, 104, 107. Cinchona. _See_ Quinine. Circulation, blood vessels of skin and, 184; color an index to, 174; control of, 226; rate of, 196. Clothing, 179-183. _Also_ 190, 247. Coal-tar remedies, 237 _note_. Cocci, 153; of pneumonia, 154, 166. Cochlea, 267. Cocoa, 90, 91-93. Coffee, 26, 89, 90, 91-93. Colds, 125, 154-156, 199, 201, 291-293. Colic, 23. Colon, 8, 18. Complexion, 114, 115, 176. Concha, 268. Cones, 264 _note_. Constipation, 19, 20, 204. Consumption, 152, 153, 157-166. _See also_ Tuberculosis. Contraction, 203. Convolutions, 219. Cooking, 62-68. Corn, 47, 60. Cornea, 259, 260, 261. Corns, 194, 195. Corpuscles, malaria germs in red, 301; red, 109, 111, 132; renewal of, 215; white, 109, 110. Cortex, 219, 223. Cowpox, 296, 297. Crystalline lens, 263. Cucumbers, 26, 58, 61. Culex pipiens, 302. Dandruff, 191. Dentine, 279. Derma, 168. Dextrin, 44. Diaphragm, 8, 13, 276. Diarrhea, 23, 47, 157. _See also_ Children's diseases. Digestion, by body cells, 17, 18; by liver, 198; food route in, 8; in intestines, 16-20; in mouth, 10-12; in stomach, 13-15; juices aiding, 9-12, 14-17; preparatory, 9. Digestive system, 7-9. Diphtheria, 293-295; germs of, 286, 310. Disease, causes of, 286-288; effects of, 238; germs of, 17 _note_, 152-154, 286, 301; growth and spread of, 288-290; hip-joint, 157. Diseases, children's, 289-291; nervous, 239, 240; occupation, 153, 195. Disinfectants, 193, 287, 303-307, 318. Disinfection, 303; methods of, 304-307; of wounds, 316-319. Dispensaries, tuberculosis, 160. Drafts, 143, 144. Drainage, extent of wells, 77; of sewage, 75-79; of swamps, 302, 303. Drink, 69-103. _See also_ Alcohol, Beverages, Water, etc. Drowning, treatment for partial, 327-330. Duct of a gland, development of, 10 _note_. Dust, 22, 153, 154, 312, 313. Dysentery, 199. _See also_ Diarrhea. Dyspepsia, 47, 199, 204, 264. Ear, care of, 268, 269; development of, 167, 252, 253; structure of, 266-270. Eczema, 59, 191. Effervescence, 11, 43, 44. Egg, digestion of, 14, 17. Enamel, 279. Energy in food and fuel, 4, 5. England, smallpox in, 296, 297.