CONTENTS xv 



CHAPTER X 



PAGE 



CIRCULATION OF THE BLOOD 119 



Review The Heart Valves and Openings of the Heart 

 Blood Vessels Lymphatics Course of the Blood Rate of 

 Blood Flow What makes the Blood move The Heart Beat 

 Sounds of the Heart The Pulse Alcohol and Tobacco 

 Summary of the Main Points. 



CHAPTER XI 



FOODS IN THE TISSUES 140 



Review The Lymph The Cell Th 2 Wastes Changes 

 in the Blood Animal Heat Loss of Heat Regulation of 

 Temperature Summary of the Main Points. 



CHAPTER XII 



THE SKIN AND THE KIDNEYS 149 



Review The Skin Glands of the Skin Appendages of 

 the Skin Care of the Skin Bathing Clothing The Kid- 

 neys Diseases of the Kidneys The Effect of Alcohol upon 

 the Skin and Kidneys Summary of the Main Points. 



CHAPTER XIII 



BONES AND JOINTS 167 



Uses of Bones The Skeleton Table of Bones Compo- 

 sition of Bone Structure of Bone Cartilage Joints 

 Posture The Curved Spine and Round Shoulders Summary 

 of the Main Points. 



CHAPTER XIV 



MUSCLES AND EXERCISE 189 



Uses of Muscles 'Description of Muscles Structure of 

 Muscles How Muscles work Large Muscles Food of 

 Muscles Value of Exercise Amount of Exercise Physical 

 Training in our Schools Time of Exercise Fatigue and 

 Rest Massage Alcohol and Tobacco Summary of the 

 Main Points. 



