PI. VIII. 



Fig. 1 6. Showing the large amount of smooth muscle belonging to the dilatator which may 

 develop in connection with the "hooks", and juts out into the stroma like a plate. 

 A poorly developed dilatator is seen immediately in front of the epithelium layer, 

 the stroma between the latter and the muscle-plate having few nuclei. There is 

 hyaline degeneration, but the difference in colour has not come out well. Part of 

 the cornea has come into the picture, and is marked by a white x cross. X 80. 



Fig. 17. One of the strange "hook-like" sharp bendings of the iridian epithelium forwards 

 and outwards into the stroma. The "hook" points out towards the ciliary body. 

 Not depigmented. ■ 400. 



