MASTICATION". 



263 



-J OS en ^ Co to 



fa 





n 



O > - p " 



n 















H 



•—. 





- 



-l 



s 



- 





ST 





^ 



3"' 



g^ 



gi 



to 





— 







^ go O 



3 



5 



ot)i-d 



So -i 





rf- * 



J3 Co 



S",£° 



t<5 CD 



cn^ a3 .- 



- ^P * 



mon 

 ears 

 yea 













.» a 



Ol 



-fcd 





CT> O 



after 

 eeks. 





"W 







5 



a 



5 

 c 

 B 



