MOUTH-BREATHERS 257 THE APPARATUS OF VISION 260 A SCHOOL EYE-TEST 263 DISINFECTING A BABY'S EYES AT BIRTH 265 THE APPARATUS OF HEARING 267 THE VOCAL CORDS 272 TEETH--A QUESTION OF CARE 278 A TOOTH 279 THE REPLACING OF THE MILK TEETH 282 A TOOTH-BRUSH DRILL 284 THE WINNING FIGHT 290 DEATH-RATE FROM MEASLES 291 DEATH-RATE FROM DIPHTHERIA AND CROUP 294 BILL OF HEALTH 298 GERMS OF MALARIA 301 CULEX 302 ANOPHELES 302 OILING A BREEDING GROUND OF MOSQUITOES 304 AN EDUCATIONAL FLY POSTER 310 A BREEDING PLACE OF FLIES AND FILTH 311 A TOURNIQUET 321 POISON IVY 325 THE NEW METHOD OF ARTIFICIAL BREATHING 328 PLATES IN COLOR DIAGRAM OF THE CIRCULATORY SYSTEM _facing_ 110 DIAGRAM SHOWING GENERAL PLAN AND POSITION OF BODY-MACHINERY _facing_ 198 A HANDBOOK OF HEALTH CHAPTER I RUNNING THE HUMAN AUTOMOBILE The Body-Automobile. If you were to start to-morrow morning on a long-distance ride in an automobile, the first thing that you would do would be to find out just how that automobile was built; how often it must have fresh gasoline; how its different speed gears were worked; what its tires were made of; how to mend them; and how to cure engine troubles. To attempt to run an automobile, for even a ten-mile ride, with less information than this, would be regarded as foolhardy.