sb., 1921] HARRIS AND OTHERS SEEDLINGS OF PHASEOLUS 87 



3. Central Region of Hypocotyl. In the sections made in the central 

 5gions of the hypocotyl and of the epicotyl at both Cold Spring Harbor and 

 torrs, the total number of bundles was counted, no distinction being made 

 etween the bundles originating from the primary double bundles and those 

 f intercalary origin. 



FIG. 20. Percentage frequency distribution of total bundles in central region of 

 lypocotyl. 



The frequency distributions are shown in table n. The relative fre- 

 juencies for line 75 are shown in figure 17. The form of the distributions in 

 me 98 is in essential agreement with those in line 75 and is not represented. 

 Hie distributions for line 93 are represented in figure 18. The distribution 

 or line 139 is shown in figure 19. That for line 143 appears in figure 20. 



The conspicuous feature of these distributions is the wide variation in 

 &amp;gt;undle number and the conspicuous skewness of the frequencies for the 



