48 OBSERVATIONS AND MEASUREMENTS ACADEMY MEMBERS t MEU0 ™ L N ™£ 



Table 37. — Facial breadth {diameter bizygomatic maximum) 



Members of the Academy 



Old Americans 



Not old Americans 



Old Americans at 



large (except 



mountaineers) 



Subjects 



Average 



Minimum 



Maximum 



Range of variation in percentage of the average 

 a 



cv 



100 

 13. 96 ± 0. 033 



12. 8 



15. 2 



17. 19 



0. 495 ±0. 023 



3. 54±0. 17 



'50 



14. 09 ±0. 059 



13. 



16.3 



23. 42 



0. 615 ±0. 042 



4. 35 ± 0. 29 



594 



2 13. 92 



12. 8 



15.8 



21. 55 



DISTRIBUTION 



12. 8-13. 2 



13. 3-13. 7 



13. 8-14. 2 



14. 3-14. 7 



14. 8-15. 2 



15. 3-15. 7 



Old Americans (100) 



Not old Americans (50) _ 



Percent 



8 

 6 



Percent 



22 

 16 



Percent 

 41 

 42 



Percent 



24 



26 



Percent 



5 

 6 



Percent 



Percent 



Percent 



32 



FACIAL BREADTH AND STATURE VERSUS AGE < 



Members of the Academy 



Old Americans 



Not old Americans 



Old Americans at 

 large (except 

 mountaineers) 



Subjects to 60 years of age, inclusive 



Average 



a 



CV 



Over 60 years of age 



Average 



(7 



CV 



60 



7. 95 ±0. 030 

 0. 344 ±0. 021 



4. 32 ±0. 27 

 40 



8. 19 ±0. 039 

 0. 368 ±0. 039 



4. 50 ±0.34 



22 



8. 04±0. 057 



0. 397 ±0. 040 



4. 94 ±0. 50 



28 



8. 16 ±0. 051 



0.400 ±0.036 



4. 90 ±0. 44 



594 

 5 7. 99 



1 In 1 of these members the facial breadth reached 16.3 centimeters, an exceptional figure, but as there was no abnormality it had to be Included 

 in the series. Without it the average would be 14.09, the simple coefficient of variation 17.19. 

 1 In 347 subjects from the Southeastern States 13.97. 



3 1 very exceptional case of racial origin. 



4 See the following equation: 



Diameter bizygomatic maximum X 100 

 Stature 

 » In 256 drafted engineers, old Americans, from Virginia and the Southeastern States 8.04. 



