PALM AND SOLE STUDII -. 



397 



thus forming a loop which opens obliquely up across the palm, 

 following the "Line of Life" and pointing up towards the base 

 of the index finger. Type B (Fig. 5) opens outwards towards 

 the outer margin, where triradius b is wanting, and thus allows 

 the figure to open widely on this side. Triradii a and c are per- 

 sistent. In type C (Fig. 6) the persistent triradii are a and 6, 

 while the failing one is c, the lower medial one. This results in 

 the formation of a loop that runs obliquely downwards and 

 medially, pointing towards the middle of the wrist. 



Aside from these three simple types, which result from the 

 loss of a single triradius, there may be found those that result 



FIG. 5 FIG. 6 



FIG. 5. A hypothenar pattern, in which triradius b is wanting, and the ridges 



escape in that direction, forming type B. 

 FIG. 6. A hypothenar pattern, in which triradius c is wanting, and the ridges 



escape in that direction, forming type C. 



from the loss of two out of the three triradii. In these the final 

 result is not a loop, but a lenticular or crescentic figure, tapering 

 at the two ends of a prolonged axis. In type AC (Fig. 7) the 

 axis of the figure runs in a curve from above, where it tapers to 

 the hollow of the hand, down to the middle of the wrist, where it 

 tapers again; in type AB (Fig. 8) a similar figure is placed 

 obliquely across the hypothenar eminence from upper medial to 

 lower lateral, retaining triradius c. 



At the present moment I am not quite sure whether type BC 



