414 



GRACE MEDES 



Some conclusions of interest may be deduced from these 

 figures. First, it may be noted that after 24 hours, the cul- 

 tures from each separate female show a slight degree of varia- 

 tion as to size, and center about a mean which is characteristic 

 for each. For instance, with A, the mean is 6.2: with B, 20.56; 

 C, 24.04 and D 13.85. Some influence of definite characters 



Plot 20 



Plot 21 



Plot 22 



