[Vol. XXin, 



76 OBSERVATIONS AND MEASUREMENTS ACADEMY MEMBERS lMEMO rv OI N xx?^ 



Table 57. — Chest depth ' 



Subjects 



Average 



Minimum 



Maximum 



Range of variation in percentage of the average 

 <r 



cv 



Members of the Academy 



Old Americans 



92 



23. 16 ±0. 14 



18.9 



28.3 



40. 60 



1. 96±0. 10 



8. 44 ±0.42 



Not old Americans 



23. 



49 



14±0. 18 



20.0 



28.0 



34.67 



1. 85 ±0. 13 



7. 97 ±0. 54 



Old Americans 



at large 



(laboratory 



series) 



246 

 21.70 



2 16.3 

 30. 3 



3 64. 5 



DISTRIBUTION 



Old Americans (92) 



Not old Americans (49). 



18.9 



Pircent 

 1. 1 



19-20. 4 



Percent 

 5.4 

 2.0 



20. 5-21. 9 



Percent 



21. 7 

 24. 5 



22-23. 4 



Percent 

 29. 4 

 34.7 



23. 5-24. 9 



Percent 

 23. 8 

 26. 5 



25-26. 4 



Percent 



13.0 



4. 1 



26. 5-27. 9 



Percent 

 4. 4 

 6. 1 



28-28.3 



Percent 

 1. 1 



2.0 



CHEST DEPTH AND AQE 



Subjects to 60 years of age, inclusive 

 Average 



a 



CV 



Over 60 years of age 



Average 



a 



CV 



Members of the Academy 



Old Americans 



55 

 23. 18±0. 16 



1. 79 ±0. 12 

 7. 72 ±0. 50 



37 

 23. 12 ±0. 25 



2. 29±0. 18 

 9. 87 ±0. 77 



Not old Americans 



22 



22. 84 ±0. 24 



1. 70 ±0. 17 

 7. 41 ±0.75 



27 



23. 39 ±0. 29 



2. 20 ±0. 20 

 9. 38 ±0. 86 



Old Americans 



at large 



(laboratory 



series) 



246 

 21.70 



' Diameter anteroposterior, at same level as breadth; mean between inspiration and expiration. 



' Next 17.8. 



8 If exceptional minimum of 16.3 is discarded, 57.6. 



