Academy of Sciences] 

 No. 3] 



OBSERVATIONAL DATA 



Table 18.— The chin. 



15 



There is a remarkable normality of chili conditions in the members of the Academy. They 

 have notably less of the square and less of the prominent or protruding chins than were found 

 among the old Americans at large. In many of the members the whole lower jaw was seen to 

 be of but moderate strength, and in a few it even inclined to be relatively delicate, though as a 

 rule normally conformed. 



Angles of the Lower Jaw 



The angles of the mandible in many members of the Academy, both old Americans and 

 more recent, were found to be more or less subdued. They were found submedium also in a 

 good proportion of the old Americans at large, but this series shows at the same time a decidedly 

 higher number of cases in which the angles were above the medium. A prominence of the angles 

 means of course, in general, a more than medium development of the muscles of mastication, 

 particularly the masseters. The detailed data follow: 



Table 19. — Angles of the lower jaw 



The factor of age does not enter materially into the above showing. The status of the 

 academicians is plain. They agree fairly well among themselves, but differ from the outsiders 

 in presenting more of the markedly submedium, much less of the above-medium, and none of the 

 prominent mandibular angle regions. The whole showing, taken together with what has been 

 seen with the chin, means merely a prevailing lesser development of the lower jaw in the mem- 

 bers of the Academy than in the old Americans at large (laboratory series), in whom it was in 

 turn less than in the general male population of the country. 



Body and Limbs 



Aside from a few cases due to injury, the members of the Academy presented, so far as the 

 development of the body and limbs was concerned, a remarkably normal lot. In but one indi- 

 vidual were seen some traces of early rickets (thorax), and there were no noteworthy deformities, 

 asymmetries, or pathological conditions. This is a showing of significance. The minds that 

 find their way into the Academy are minds usually accompanied with and sustained by normal 

 bodies. There have been and doubtless now are geniuses who physically were or are seriously 

 wanting, but such evidently do not come to be selected for the Academy. 



