No. 539] DISTRIBUTION OF PURE LINE MEANS 695 

 TABLE IV 



ratios (m — M)/<r (m . M} to have a standard deviation of 

 1 ± .67449/ V 2s, where s is the number of lines involved. 

 The constants are given in Table V. 



TABLE V 



1. Weight of plant 1.738 ± .077 1.886 ± .087 



2. Length of stem 2.620 ± .117 3.209 ± .148 



3. Thickness of stem 2.008 ± .089 1.768 ± .082 



4. Number of pods 1.717 ± .076 1.955 ± .090 



5. Weight of pods 2.213 ± .098 1.839 ± .085 



6. Number of seeds 1.857 ± .083 1.759 ± .081 



7. Weight of seeds 1.895 ± .084 2.188 ± .101 



Now we remember that Roemer's individual lines are 

 represented by so few individuals that our formula may 

 not give absolutely trustworthy results, and that in case 



14 Numbers of characters are the same as in Tables III and V. 



