THE TIME OF ORGANIZED BEINGS 



153 



differences between mean values, it can be admitted that the 

 coefficient A is very close to the activity constant of reparation 

 within the accepted limits. The relative maximum errors 



expressed as a percentage of the mean value are 8-5 per cent 

 in the first case (20 years), 9 per cent in the second (30 years), 

 and 2 per cent in the third (40 years). These errors are 

 inferior to those accepted for the index and are certainly less 

 than those which affect the majority of measurements per- 

 formed on living organisms. 



Basing ourselves on the values of 2 for intermediary ages, 

 we finally obtain the following mean values of A : 



20 years 25 years 30 years 32 years 40 years 

 ^4=0-260 0-225 0-198 o-i88 0-144 



We had only two patients of fifty under observation. They 



