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to be audible. Test the other ear and see if it is equally 

 acute. 



(b) Hold a ticking watch between the teeth, and note 

 whether the sound seems faint or loud. 



Close both ears with cotton and compare the result. 



(c) Keeping the ears closed with cotton, lay the watch 

 against the bony part of the nose and state the result. 



Can you suggest any reason why these tests are of 

 decided value in an examination of one's hearing ? 



