FISSION RATE OF STYLONYCHIA PUSTULATA 



477 



periods of figure 3 (which gives the average fission rates of the 

 two sets of Hnes of tlie entire first experiment for the one hun- 

 dred and thirty days they were selected), give the average 

 fission rates of the hnes of this part of Experiment 1. Table 8 

 gives the actual number of generations per 30 lines as well as 

 the average number of selections and generations per line that 

 occurred and the differences in the average fission rates. 



It has been pointed out that, on the average, for the first 

 three ten-day periods of Experiment 1 each fast line produced 



TABLE 8 



Experiment 1, Part 4: Actual and average number of generations and of selections 

 per 30 lines per ten-day period during the ninth to the thirteenth ten-day periods 

 of continuous opposite selection of the lines of Experiment 1 



