366 



Murray Eden 



most probable. It also appears that configurations with many short branches 

 are more probable than those with a few long branches. Finally, it is also 

 observed that as k increases, a decreasingly small fraction of the A'-array carries 

 the weight of probability. This is shown in Fig. 4 and in Table III. The k- 

 configurations have been ranked in order of decreasing probability, that is, 



.2 .3 .4 .5 .6 



fractional rank 

 Fig, 4 



.8 



1.0 



Table III. 



the most probable configuration was designated 1, the next most probable 2, and 

 so on, and the cumulative probability (as ordinate) was plotted against the 

 rank divided by N[k] (number of distinct A'-configurations) as abscissa. 



