390 



FRANCIS B. SUMNER 



since the variability of these is so largely dependent upon the 

 variability in the size of the animals concerned. 



As has already been noted, the order of arrangement is much 

 the same for the two characters portrayed. The only difference 

 concerns the relative positions of the three 'gambeli' races. 



.6 

 .5 

 .4- 

 ,3 

 .2 

 .1 



22.0 

 .9 

 .6 

 .7 

 .6 

 .5 

 .4 

 .3 

 .2 

 .1 



21.0 



EuPcka (rubidus) 

 Carlotta " 

 Fort Bragg- » » ■ 

 Duncan Mills » 



/' 



4- 



MALES 



LaJolla(gambdi) 

 Berkeley «« 

 Calistoga « 

 Victorville(5onoricn5is) 



80 81 82 83 84 65 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 



Fig. 3 Graphs showing foot length in the eight races (males). Body length 

 is represented on the horizontal axis, foot length on the vertical one. The fig- 

 ures along the various 'curves' indicate the number of individuals in the re- 

 spective size groups. Each 'curve' connects the group-means for a single local 

 'race.' 



These three, however, taken together, occupy in both cases 

 the same position, relative to the other races. The broad over- 

 lapping of adjacent races and the large degree of distinctness of 

 the extremes are well shown in this figure. 



Passing to a consideration of the correlations among the 

 various characters, it will be seen from table 2 that all of the 



