PALM AND SOLE STUDIES. 



4OI 



distinct separation between them. In these cases there may 

 appear a new triradius between the two parts, a "degeneration 

 triradius," resulting from this process, and having no counter- 

 part in any element of the primary pattern or its surroundings 

 (Fig. 16). 



The two portions of this outspread pattern seem to develop 

 without any correlation; the upper one may remain as a large 

 loop (Fig. 1 8) or may disappear (Fig. 17, 19). Similarly the 



FIG. 16. An S-shaped pattern, which is so large that there has developed a 

 "degeneration-triradius," which cuts the pattern in two and makes two loops of it. 

 Each loop is apparently independent and is directed in different directions. 



FIG. 17 FIG. 18 



FIG. 17. A double S-shaped pattern, in which the loops differ 



in direction from those shown in Fig. 16. 



FIG. 1 8. A double S-shaped pattern with the two loops again 

 unlike those of Figs. 16 and 17. 



