CHAPTER I: THE BODY-REPUBLIC AND ITS DEFENSECHAPTER II: OUR LEGACY OF HEALTH: THE POWER OF HEREDITY IN THE PREVENTION OF DISEASECHAPTER III: THE PHYSIOGNOMY OF DISEASE: WHAT A DOCTOR CAN TELL FROM APPEARANCESCHAPTER IV: COLDS AND HOW TO CATCH THEMCHAPTER V: ADENOIDS, OR MOUTH-BREATHING: THEIR CAUSE AND THEIR CONSEQUENCESCHAPTER VI: TUBERCULOSIS, A SCOTCHED SNAKECHAPTER VII: TUBERCULOSIS, A SCOTCHED SNAKECHAPTER VIII: THE GREAT SCOURGECHAPTER IX: THE NATURAL HISTORY OF TYPHOID FEVERCHAPTER X: DIPHTHERIACHAPTER XI: THE HERODS OF OUR DAY: SCARLET FEVER, MEASLES, AND WHOOPING-COUGHCHAPTER XII: APPENDICITIS, OR NATURE’S REMNANT SALECHAPTER XIII: MALARIA: THE PESTILENCE THAT WALKETH IN DARKNESS; THE GREATEST FOE OF THE PIONEERCHAPTER XIV: RHEUMATISM: WHAT IT IS, AND PARTICULARLY WHAT IT ISN’TCHAPTER XV: GERM-FOES THAT FOLLOW THE KNIFE, OR DEATH UNDER THE FINGER-NAILCHAPTER XVI: CANCER, OR TREASON IN THE BODY-STATECHAPTER XVII: HEADACHE: THE MOST USEFUL PAIN IN THE WORLDCHAPTER XVIII: NERVES AND NERVOUSNESSCHAPTER XIX: MENTAL INFLUENCE IN DISEASE, OR HOW THE MIND AFFECTS THE BODY