Cresoles, 213 Croup, 332 Croup, bronchial, 343 Crude sewage, 133 Crying, 280 Crying, incessant, 314 Crystalline lens, 96 Curiosity of child, 280 Cutting teeth, 299 Cyanosis, 374, 308 Cyclic vomiting, 365 D Dairy barn, unsanitary, 259 Dampness, 29, 32 Damp site, 29 Deciduous or milk teeth, 299 Decomposing food between teeth, 302 Decompression, air, 52 Decreased air pressure, 50 Deep sleep, 279 Deep wells, 123 Deformities of the thorax, 295 Degree of infection, 172 Dental caries, 302 Dentition, 299 Dentition, incoördinations during, 300 Dentition, symptoms exaggerated by, 300 Deodorant, 209 Desk, school, 144 Distinction between sanitation and hygiene, 14 Development, 285 Development of brain, 279 Diameter of chest, 294 Diaper, changing, 283 Diaphragm, 280, 340 Diarrhea during dentition, 300 Definitions, 171 Digestion, gastric, 357 Digestive organs, 278 Digestive tract, 353 Dilution, 127 Diphtheric germs, 197 Direct infection, 199 Direct lighting, 101 Direct radiation, 87 Dis-ease acute, 171, 226 Dis-ease, cause of, 21 Dis-ease, constitutional, 171 Dis-ease, germs do not cause, 191 Dis-ease the cause of germs, 189 Disinfection, 207, 210 Disposal of excreta, 223 Distillation of water, 109 Distilled water, 129 Divers, 51, 163 Diver’s palsy, 53 Diving bells, 52 Diving suits, 52 Domestic water supply, 118 Drafts, 282 Drainage, 32 Draw sheet, 222 Drinking fountains, 146 Dry heat, 211 Dry man, 247 Dry milk, 262 Dustless chalk, 145 Dusty trades, classification of, 165 Dyspnea, 334, 335, 343 E Ear drums, 52 Echinococcus, 271 Edema of glottis, 339 Equation, 339 Major adjustment, 339 Symptoms, 339 Educated mind, 220 Educated mind, function of, 219-220 Effects of dust, 164 Effect of labor upon children, 158 Effect of posture, 159 Electric discharges, 49 Elimination of water from body, 111 Endemic, 177 Energy, expenditure of, 61 Environment, 381 Environment, importance of, 218 Environment, necessity of quiet, 279 Enzymes, autolytic, 267 Epidemic, 177 Epistaxis, 331 Equation, 331 Family, 332 Major adjustment, 332 Equation, epistaxes, 331 Equilibrium, 50, 296 Eruption, 301 Evaporation, 31, 58, 126 Evolution of lighting systems, 99 Exercise, 277, 280 Exercise, outdoor, 281 Excessive quantity of urine, 386 Exhaustion, muscular, 282 Exhaustion theory, 184 Expenditure of energy, 61 Expired air, 65 Exposure, 172 Exposure, stage of, 172 External cleanliness, 15 Eye, 96 Adaptation to light, 96 Aqueous humor, 96 Crystalline lens, 96 Fovea centralis, 96 Iris, 96 Macula lutea, 96 Protection, 284 Retina, 96 Vitreous humor, 96 Eyelids during sleep, 290 F Facial expression, 308