DEFINITION OF DISEASE.--CHARACTERISTICS OF LIVING MATTER.--CELLS AS THE LIVING UNITS.--AMOEBA AS TYPE OF A UNICELLULAR ANIMAL.--THE RELATION OF LIVING MATTER TO ENVIRONMENT.--CAPACITY OF ADAPTATION TO ENVIRONMENT SHOWN BY LIVING MATTER.--INDIVIDUALITY OF LIVING MATTER.--THE CAUSES OF DISEASE EXTRINSIC.--THE RELATION OF THE HUMAN BODY TO THE ENVIRONMENT.--THE SURFACES OF THE BODY.--THE INCREASE OF SURFACE BY GLAND FORMATION.--THE REAL INTERIOR OF THE BODY REPRESENTED BY THE VARIOUS STRUCTURES PLACED BETWEEN THE SURFACES.--THE FLUIDS OF THE BODY.--THE NERVOUS SYSTEM.--THE HEART AND BLOOD-VESSELS.--THE CELLS OF THE BLOOD.--THE DUCTLESS GLANDS 9 CHAPTER II NO SHARP LINE OF DEMARCATION BETWEEN HEALTH AND DISEASE.--THE FUNCTIONAL NUTRITIVE AND FORMATIVE ACTIVITIES OF CELLS.--DESTRUCTION AND REPAIR CONSTANT PROCESSES IN LIVING MATTER.--INJURIES TO THE BODY.--THE EFFECT OF HEAT.--THE ACTION OF POISONS.--THE LESIONS OF DISEASE.--REPAIR.--THE LAWS GOVERNING REPAIR.--RELATION OF REPAIR TO COMPLEXITY OF STRUCTURE AND AGE.--THE RESERVE FORCE OF THE BODY.--COMPENSATORY PROCESSES IN THE BODY.--OLD AGE.--THE DIMINUTION OF RESISTANCE TO THE EFFECTS OF THE ENVIRONMENT A PROMINENT FACTOR IN OLD AGE.--DEATH.--HOW BROUGHT ABOUT.--CHANGES IN THE BODY AFTER DEATH.--THE RECOGNITION OF DEATH 40 CHAPTER III THE GROWTH OF THE BODY.--GROWTH MORE RAPID IN EMBRYONIC PERIOD.--THE COOeRDINATION AND REGULATION OF GROWTH.--TUMORS.--THE GROWTH OF TUMORS COMPARED WITH NORMAL GROWTH.--SIZE. SHAPE AND STRUCTURE OF TUMORS.--THE GROWTH CAPACITY OF TUMORS AS SHOWN BY THE INOCULATION OF TUMORS OF MICE.--BENIGN AND MALIGNANT TUMORS.--EFFECT OF INHERITANCE.--ARE TUMORS BECOMING MORE FREQUENT?--THE EFFECT PRODUCED BY A TUMOR ON THE INDIVIDUAL WHO BEARS IT.--RELATION OF TUMORS TO AGE AND SEX.--THEORIES AS TO THE CAUSE OF TUMORS.--THE PARASITIC THEORY.--THE TRAUMATIC THEORY.--THE EMBRYONIC THEORY.--THE IMPORTANCE OF THE EARLY RECOGNITION AND REMOVAL OF TUMORS 62 CHAPTER IV THE REACTIONS OF THE TISSUES OF THE BODY TO INJURIES.--INFLAMMATION.-- THE CHANGES IN THE BLOOD IN THIS.--THE LMIGRATION OF THE CORPUSCLES OF THE BLOOD.--THE EVIDENT CHANGES IN THE INJURED PART AND THE MANNER IN WHICH THESE ARE PRODUCED.--HEAT REDNESS SWELLING AND PAIN.--THE PRODUCTION OF BLISTERS BY SUNBURN.--THE CHANGES IN THE CELLS OF AN INJURED PART.--THE CELLS WHICH MIGRATE FROM THE BLOOD VESSELS ACT AS PHAGOCYTES.--THE MACROPHAGES.--THE MICROPHAGES.--CHEMOTROPISM.--THE HEALING OF INFLAMMATION.--THE REMOVAL OF THE CAUSE.--CELL REPAIR AND NEW FORMATION.--NEW FORMATION OF BLOOD VESSELS.--ACUTE AND CHRONIC INFLAMMATION.--THE APPARENTLY PURPOSEFUL CHARACTER OF THE CHANGES IN INFLAMMATION 79 CHAPTER V