354 A Study of the Hand 
TABLE X. 
Bone Length of Fingers. Right Hand. 
44 Cases 
^3 
^^4 
^^5 
^2 
1 
•962 + -008 
•949+ -010 
•897 + -020 
•962 + •OOS 
1 
•960 + •OOS 
•920+ -016 
•949+^010 
•960+ •OOS 
1 
•933 + ^013 
•897 + ^020 
•920+ •Ol 6 
•933 + ^013 
1 
TABLE XL 
Bone Length of Fingers. 
Left Hand. 
44 Cases 
La 
L, 
1 
•952 + -009 
•943+ -Oil 
•900 ±^019 
•952 + -009 
1 
•948+^010 
•889f021 
•943+ -on 
•948 + ^010 
1 
•893 + •021 
•900+ -019 
•889+^021 
•893 + -021 
1 
These results bring out strongly : 
(a) the high degree of correlation between the whole fingers, if anything 
slightly greater for the right than the left hand*; 
{h) the rule that a finger has always more correlation with a second than 
with any finger from which it is separated by the second. 
There is here no exception whatever to this rule ; and 
(c) the marginal fingers have the least correlation and the little finger 
always less than the index. 
(5) Let us now consider the correlation of bones of the same digit, i.e. discuss 
longitudinal and not lateral relationship. In the first place we take the thumb. 
TABLE XII. 
Bones of the Thumb. Right Hand. 
43 Cases 
Rmj^ 
Rpi 
Rdi 
1 
•821 ± ^034 
•552 + ^072 
•821 + -034 
1 
•581 + -068 
•552 + ^072 
•581 + -068 
1 
* This is not in accordance with the result from finger-joint measurements {R. S. Proc. Vol. 65, 
p. 131), but the advantage of the right is really vei-y slight. 
