CERTAIN GROUPS OF ARTICULATA. 



271 



d Ji 



Fig. 174 (E). 



Fig. 173 (D). 



F^^TF). Fi s- 176 < ti >- 



st 



th 



Ib m an 



cT < / d 



Fig. 178 (I).' 



cl 



th < I cl 



Fig. 179 (Ji. 



Fig. 183 (N) 



Fig. 185 



