I N THE TROPICS : in 



143 



rated in Table 33. A few of the finest of these F4 plant? 

 (self-pollinated) produced the following numbers of yellow 

 and white grains : — 



grain — yellow and white. These were counted as yellow. 

 No. 26 produced 2 blue grains, doubtless due to accidental 

 pollination. 



About a third of the total number of yellow grains were dis- 

 tinctly darker in tint than the remaining two-thirds. To take 

 a particular instance, out of 100 yellow grains taken at random 

 from the total number on a particular cob, some thirty grains 



9(8)06 (7) 



