J. A. Harris and F. G. Benedict 



267 



-1,624 days) are positive in sign, as are two of the other four 

 efficients. There is, therefore, a suggestion of positive corre- 

 liion in the longer time groups. .It is clear from the magnitude 

 o; these correlation coefficients that, as suggested above, the 

 s^ndard deviations do not steadily increase with the lapse of 



T1AHGE IN UflfS 



FIG. 1. Abscissae represent maximum range in days; ordinates show 

 endard deviations of daily means in the individual or correlations be- 

 tsen range of time covered by observations and standard deviation of 

 dily metabolism. Solid dots and line represent correlation coefficients; 

 ccles and solid line represent the mean standard deviations for the indi- 

 vluals of each group for which the correlations were computed; circles 

 ai broken line represent the mean standard deviation of the individuals 

 aded to each preceding group to form the group upon which the correla- 

 tn coefficient is based. Because of the great variation in the length of the 

 priods no attempt has been made to represent abscissae on a uniform scale. 



