PI. VI. 



Fig. 12. The peripheral part of an iris from a wooman of 66. P. c. = the beginning of a 

 ciliary process. The line runs to the peculiar, "club"-shaped swelling in which 

 the dilatator ends in this case. Section not depigmented. - 50. 



Fig. 13. The peripheral part, with dilatator, of an iris from a rnan of 52. P. c. = ciliary 

 process. .Section not depigmented, x 80. 



