12 



I 00 



-JOOO 



North 



1 - ( Coefficlenir of cioseniass) 



FIG. 2. 



Fig. 2. — Con-elation between the coef&cient of closeness and the latitudinal value^ 

 and the rejection-ellipses distinguishing the type of distribution. Thick lines, 

 rejection-ellipses ; thin lines, regression lines 



were far apart from the other points, they were excepted from both the 

 Pacific and the Japan Sea groups, and as Hakodate and Aomori should 

 be clearly influenced by both seas these points were together classed in 

 each group. Thus a straight regression would be expected in each group ;; 

 therefore the coefficients of regression were calculated as 9-98 in the 

 Pacific Coast and 7-25 in the Japan Sea. Between these two figures 

 no significant difference was recognized from these data under the level 

 of significance of 0-01 available. 



321 



11 — Pac. Coneress 



