116 
Brain-weight and Head size 
It will be seen on referring to the table given below that a considerable 
diminution of the capitnlo-statural index takes place with increase in stature ; and 
also that the size of the head increases with the stature, but that the enlargement 
of the head does not keep pace with the increase in stature. 
Table showing the proportion that the size of the head bears to the stature in 
groups of individuals arranged according to their height, the degrees of 
which are expressed in intervals of 3 inches. 
Number of 
oases in 
each group 
Stature 
Index of size 
{LxBx 11) 
cm.^ 
Capitulo-statural index 
v'index of size x 100 
Stature 
Inches 
cm. 
Index of size 
cm. 
37 
74—72 
185-3 
4135 
16-05 
8-66 
120 
71—69 
177-7 
4071 
15-97 
8-98 
124 
68—66 
170-0 
3993 
15-87 
9-00 
67 
65—63 
162-4 
3902 
15-75 
9-69 
15 
62—60 
154-8 
3778 
15-56 
10-05 
This table is based upon the measurements of 363 male subjects of all classes 
in England above 20 years of age, the larger number of these belong to the 
professional class, so that both the mean stature and mean size of the head are 
slightly above the general average. 
The increase in size of the head, accompanying increase in stature, is shown 
also in the following chart, which is planned from the same figures as the preceding 
table : 
Ninnbcr in cacli (jroiip 
15 Cw 12-t 120 37 
4150 
4100 
4050 
4000 
3950 
3900 
3850 
3800 
3750 
3700 
3G50 
i 
.0 
0 
— ^ 
jiiifi. 
1548 
mm. 
1G24 
mill. 
1700 
III III. 
nil 
mill. 
1853 
4007 
l\Ican 
Index of size 
GO 01 02 03 C4 G5 00 07 GS GO 70 71 72 73 74 
liii'lu'S 
Fig. 5. Chart showing the increase in the size of the head which takes place with increase of stature. 
The chart is based on the measurements of 3G3 adult male subjects, above 20 years of age. The indi- 
viduals have been grouped according to their stature, which is expressed in intervals of 3 inches. The 
figures indicating the size of the head are shown in the column on the left. 
