CONTENTS 



PAGE 



CHAPTER XLV. SKELETAL SYSTEM ........................ 370 



General; Kegions of the skeleton; The head; The trunk; 

 Ribs and sternum; Bones of limbs; Composition of bone; 

 Growth of bone; Joints; Hygiene of the skeleton. 



CHAPTER XLVI. MUSCULAR SYSTEM ...................... 378 



Importance; Structure; Blood and nerve supply; Action of 

 muscles; Results of muscular action; Exercise. 



CHAPTER XLVII. NERVOUS SYSTEM ....................... 383 



Introduction; Parts of nervous system; The nerve cell; 

 Nerves; The brain; Functions of brain; Spinal cord; Sym- 

 pathetic nervous system; Action of nervous system; Reflex 

 actions; Voluntary action; Habits; Education; Care of 

 nervous system. 



CHAPTER XLVIII. THE SPECIAL SENSES ................... 397 



General; Touch; Temperature; Taste; Smell; Eye; Struc- 

 ture; Light; Lenses; Images; Focusing; Defects of the 

 eye; Care of the eyes; The ear; Structure of the ear; 

 Action of ear; Care of ears. 



CHAPTER XLIX. HEALTH AND DISEASE ................... 411 



Importance of health; Health and disease; Cause of dis- 

 ease; How germs enter the body; Growth of germs; How 

 the body destroys germs; Treatment of disease; Serums; 

 Vaccines; Medicines; Immunity. 



CHAPTER L. SANITATION ................................. 421 



Importance; Preventable diseases; Destruction of germs; 

 Disinfection; Fumigation; Quarantine; Food; Insects and 

 disease; Milk; Water; The Board of Health. 



