CONTENTS. 



CHAPTER IV. 



PAGE 



WORK AND WASTE. THE BLOOD 50 



Section I. Wear and Repair. Sleep. Section II. Materials for 

 Repair. Air. Food. Water. Section III. The Blood. Red 

 Corpuscles. White Corpuscles. The Plasma. Coagulation. 

 Loss of Blood. Causes of Impure Blood. 



CHAPTER V. 



THE CIRCULATION 



Section I. Organs of Circulation. Arteries. Capillaries. Veins. 

 Section II. The Heart. The Pericardium. The Auricles. 

 The Ventricles. The Tricuspid Valve. The Pulmonary Ar- 

 tery. The Pulmonary Veins. The Semilunar Valves. The 

 Mitral Valve. Section III. Action of the Heart. The Heart 

 a Double Pump. The Lesser Circulation. The Greater Cir- 

 culation. Section IV. Sounds of the Heart. Section V. 

 Arteries. Veins. Capillaries. Rapidity of Blood-Current. 

 Points in which Arteries and Veins differ. Section VI. The 

 Pulse. What the Pulse tells. Section VII. Variations in 

 Blood-Supply. Section VIII. Effect of Alcohol on the Circu- 

 lation. 



CHAPTER VI. 



FOOD AND WATER, STIMULANTS AND NARCOTICS 77 



Section I. Definition of Food. Elements in the Body. The 

 Work of Plants. Flesh-eating Animals. Vegetable-eating 

 Animals. Milk. Meats. Starchy Foods. Graham Flour. 

 Sugar. Fat. Cooking. Mineral Substances. Water. Eat- 

 ing arid Drinking Habits. Section IL Tea and Coffee. To- 

 bacco. Opium. Alcohol. Chloral. 



