Chap. XI. AND NEGATION. 277 



his head forwards and downwards naturally looks up to 

 the person whom he addresses, he will be apt to raise his 

 eyebrows, and this sign may thus have arisen as an abbre- 

 viation. So again with the Xew Zealanders, the lifting 

 up the chin and head in affirmation may perhaps repre- 

 sent in an abbreviated form the upward movement of the 

 head after it has been nodded forwards and downwards. 



