CONTENTS 



CHAPTER PAGE 



I. BREATHING AND PURE AIR i 



II. PURE AIR AND THINGS THAT SPOIL IT 6 



III. TOBACCO AND PURE AIR 11 



IV. HOW THE AlR MOVES AND HOW MUCH WE NEED . . l6 



V. How TO GET FRESH AIR. DRAFTS 21 



VI. VENTILATION OF THE BUILDING You ARE IN ... 27 



VII. A LITTLE LESSON ABOUT LITTLE THINGS. MICROBES. 29 



VIII. MICROBES AND KEEPING CLEAN 34 



IX. DUST AND CLEANLINESS 38 



X. TOBACCO CHEWING AND CLEANLINESS ...... 43 



XI. WHY AND HOW WE NEED TO SLEEP 47 



XII. SOME RULES ABOUT SLEEPING 52 



XIII. HABITS OF SLEEPING 57 



XIV. DANGERS TO THE EYESIGHT 62 



XV. READING, BOOK PRINT, AND GLASSES 70 



XVI. ANIMALS AND ALCOHOL 77 



XVII. ANIMALS AND ALCOHOL (continued') 83 



XVIII. THE EAR THAT WE CAN SEE 90 



XIX. THE EAR WE CANNOT SEE 95 



XX. THE WAY TO TREAT THE FINGER NAILS 101 



XXI. CARING FOR THE HAIR 108 



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