CONTENTS 



CHAPTER PAGE 



I. BREATHING AND PURE AIR i 



II. PURE AIR AND THINGS THAT SPOIL IT 6 



III. TOBACCO AND PURE AIR . n 



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 



XL 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 



