PLATE 2 



EXPLANATION OF FIGURES 



3 From the sciatic nerve of a dog, Cajal's method, teased. Note the nucleus 

 on the non-meduUated fiber (a). Zeiss Compens. Ocu. 12; Obj. 4 mm. 



4 Camera hicida tracing of a section of the sciatic nerve of a dog. Stroeebe's 

 method, h, largo modullated fiber; c, small medullated fiber. Spencer Ocu. 8 X, 

 Obj. 2 mm. 



5 Camera lucida tracing of a Cajal preparation of the sciatic nerve of a 

 dog. n, non-medullated fibers; 5, large medullated fiber; c, small medullated 

 fiber. Spencer Ocu. S X, Obj. 2 mm. 



84 



1 



