148 



Pearl and Surface. 



Table 



Series 



Showing the mean quintile position and standard 



ins: to mean 



Mean quin- 



individual plants falling in the given class, together with the mean 

 quintile position and the standard de\aation of each. In the next to 

 the last row of the table there is given the average mean quintile 

 position and the average standard deviation of the plants in each 

 class. Finally in the last row of the tables there is given the number 

 of plants in each class. 



The frequency distributions given in the last rows of these tables 

 will be discussed first. For convenience these distributions together 

 with their constants have been brought together in Table 16. 



