Harris Hawthorne Wilder 



427 



the method of investigation seemed in a way unscientific and unsatis- 

 factory, and tliere was even some difhculty in attributing a centre to its 

 proper place, owing to what seemed an excessive degree of development 

 of one area at the expense of the other. In short, I experienced the 

 difficulties common to all morphological work in which no basis of 

 homology has been established, and I thus cast about for some accurate 



Fig. 1. — Right baud. Print and interpretation. Palmar areas open.^ 



means of dividing the surface under investigation into definite areas, 

 ivithout the necessity of depending upon tlie presence of loops or other 

 indications of patterns. As I found patterns that had suffered all de- 

 grees of reduction even to almost complete suppression, it seemed 



1 Explanation of Lettering. 

 Lines : P1-P4, palmar ; dOi-dOi, outer digital ; dij-dij, inner digital ; Th, thenar ; 

 CO, outer carpal; ci, inner carpal. Areas: P1-P3, palmar; D1-D4, digital; Th, 

 thenar; H, hypothenar ; H', hypothenar addition ; C, carpal. Triradii : tri-tr4, pal- 

 mar ; tr. c, carpal. 



