184 



CARL DOWNEY LA RUE 



APPENDIX 



Tables of constants of experiments 1 and 2 



TABLE 12 



Means and standard deviations of spore lengths of cultures grown in experiment 1. The mean of 

 each culture was calculated from at least 100 measurements. Values are given in units of the scale of 

 the eye-piece micrometer used. 1 unit = 1.8 microns. Single spore culture of parent strain (No. 29} . 

 Mean = 13.80, ff = 1.58. 



Generation 1 of experiment 



Mean of generation 13.84. 



Generation 2 



