PROPORTIONS 



275 



To Q, B, from the fissure of the maxilla to the border of the 

 lips (G. and B.) ; 



To O, D, from the internal angle of the eye to the angle of 

 the lower jaw, provided that the line C, D be in proportion 

 (G. and B.). 



Finally, very frequently to O, H, from the internal angle 



Pig. 109. — The Same Design as that of Fig. 108, on which we have 

 indicated, by similar lines, the principal corresponding 



Measurements. 



Half the length of the head, and the dimensions which equal it ; distance 

 wliich separate the nape from the internal angle of the eye, and the 

 dimensions which equal it ; distance which separates the internal angle 

 of the eye from the border of the lips, and the dimensions which equal it.* 



of the eye to the insertion of the throat into the maxillary 

 trough (G. and B.). 



* It is thus that in our teaching, but by means of lines of different 

 colours, we present the proportions reproduced in Fig. 108. Experience has 

 demonstrated to us that this replacement of letters by conventional lines 

 renders the proportions more easily appreciable, and that these lines, 

 striking the eye more forcibly, then impress themselves better on the 

 memory. Fig. iii bears the same relation to Fig. no. 



18—2 



