PALM AND SOLE STUDIES. 2O3 



but in these cases the areas where they belong are sufficiently well 

 indicated by the triradii, especially the upper or distal ones. The 

 first interdigital area is often marked by a whorl, frequently a 

 typical one (Fig. 19) but the three others are either in the form of 

 a loop, which may open either up or down, or, perhaps most 



FIG. 20. Tracing from a sole print (No. 82) showing the areas of the four inter- 

 digital patterns. The first and the third are seen as whorls. 



frequently of all, are crossed by approximately parallel lines with 

 no suggestion of a pattern. The second interdigital pattern often 

 gives the suggestion of having been squeezed laterally, and is 

 often in the form of a narrow loop, opening downward. Aside 

 from the first, the third interdigital is the most likely to be in the 

 form of a whorl (Fig. 20), and in Fig. 21, there is a large whorl, 

 concerning whose identification there is some doubt, not cleared 

 up by the tracing of the entire sole (Fig. 22), although it is 

 probably the fourth. 

 14 



