204 



PROCEEDINGS OF THE CANADIAN INSTITUTE. 



V ' *♦ i 



Fiff. 9. 



Tongue, teeth and cheeks in the () foi-m, lips protruded, oral 

 aperture reduced to half the size for O. 



Fig. 10. 



Place the tongue against the roof of the mouth, sink its fore-part 

 near the mid-arch of the hard palate, so that its tip rests 



