K. Pearson 
133 
general percentage being very irregular. Dark-haiied children of both sexes 
have a maximum in the Intelligent to Sloiu Intelligent, there being fewer than the 
normal number of both the very able and the very stupid. The analographs 
for dark boys and girls run very parallel, and I think there can hardly be a doubt 
that the very dark are not up to the average in either extreme ability or extreme 
dullness. While the total of brown and dark boys is closely equal to the total 
of brown and dark girls, there is a sensibly larger percentage of dark boys than 
girls in these records. The total percentages of red-haired children is strikingly 
alike for the two sexes. There appears, as far as the slender material enables us 
to judge, however, a sexual difference in their distribution of intelligence. Dis- 
regarding the distinction between Slow Dull and Verij Dull, as the numbers are 
too scanty to use apart, we find that red-haired boys are most numerous among 
the Slow Intelligent, while red-haired girls have a reversed hetcroclisy, being most 
frequent among the Quich Intelligent or the Very Bull. To some extent these results 
are confirmed by the data for eye colour ; in the case of both boys and girls 
the Quick Intelligent group contains less than the general percentage of dark-eyed 
children. The fair children, on the other hand, are in excess in the Quick Intelli- 
gent and the total Dull group. Thus light-eyed children have a slight tendency 
to the extremes and dark to mediocrity. 
As a whole, while I note some traces of relationship of intelligence to pigmen- 
tation, there is not enough to justify any sweeping assertions. While not very 
hopeful, I think it would be worth while making a much finer classification with 
actual eye and hair scales ; it would be a laborious piece of work, but there is just 
the indication that it might lead to more definite relationships. 
Hair Set. Here again we have some rather marked sexual differences. 
Curliness in boys decreases as we pass from the intelligent to the dull end of 
the scale. In girls it is precisely the opposite ; curly-haired girls are three times 
as frequent as curly-haired boys, but the percentage of curly dull girls is twice 
that of curly and quick intelligent girls. On the other hand, wavy hair, which is 
heteroclinal for boys, has a well-marked homoclinal analogrciph for girls, intelligent 
girls having more frequently wavy hair than dull girls. These points are indi- 
cated in Figs. 12 and 13. 
I now pass to a series of characteristics which are on the borderland between 
the psychical and physical — Handwriting, Athletic Power, and Temper — all of 
which have well-marked homoclinal analographs. 
Handivriting. Figs. 9 and 10 indicate how markedly, for both boys and girls, 
good handwriting decreases and bad handwriting increases with the transition 
from intelligence to dullness. 
Athletic Power. Fig. 11 shows how the percentages of both non-athletic boys 
and girls are more than doubled as we pass from the quick intelligent to the dull 
groups. The athletic character in children, at any rate, is markedly associated with 
intelligence. 
