Fig. 14 is a photograph of a model of the head of a microcephaHc idiot (reduced 3). 

 Note that the upper and lower portions of the face markedly converge to- 

 wards the tip of the prominent beak-like nose, thus imparting a character- 

 istic bird-like appearance to the countenance. Observe also the malformed 

 ear and how far back on the side of the head it is situated. The striking 

 feature is, however, the excessive degree of retraction of the jaws and chin 

 due to the defective dentition. For this condition I have proposed the use 

 of the term "retrognathism." 



