GOOD HEALTH 



Poke your finger in and see how small it is ; cover both 

 ears at once with your hands and notice how little you 

 can hear. If you should stop it up entirely you would 

 hardly hear anything at all, for it is the outside end 



THROWING LIGHT ON THE EARDRUM 



of the tube that carries sound from the world for us 

 to hear. 



It is about one inch long, and the deeper it goes the 

 narrower it gets. Wax and a few hairs do what they 

 can to keep the insects out ; yet it is this very wax that 

 troubles us sometimes. The best way to get rid of it is 

 to use a soft, damp cloth over the end of the finger. 



