PLATE 4 



EXPLANATION OF FIGURES 



14, 15, 16, 17 Varicosities on nerve fibers in skin of face. Stained intra vitam 

 with methylene blue, and fixed in ammonium molybdate. X 1500. 



18 End-bulb from upper lip; br, distal branch of axis cylinder; en, enlarged 

 ending of axis cylinder; p, plate (expanded axis cylinder). Stained intra vitam 

 with methylene blue, and fixed in ammonium molybdate. X 1500. 



19, 20 Terminal corpuscles in skin of back; nu, nucleus. Stained intra vitam 

 with methylene blue, and fixed in ammonium molybdate. X 750. 



21 Section of nerve trunk from interfermoral membrane ; ax, axis cylinder 

 Stained intra vitam with methylene blue, and fixed in ammonium molybdate. 

 X 166. 



342 



