Vid.-Selsk. Skr. I. M.-X. Kl. 1922. No. 4. 



PI. M. 



M* .'.'; V'' ,\ i V«. -v. ' -7. B^ ^'T?!^'' 



" ''-^ y-.-h ••' »^ ^ 



s r^. 



Fig. 13. A place in the intermediary zone, where a considerable amount of smooth muscle 

 has developed, appearing in the form ot" a "strenghtening band", and penetrating some 

 distance into the stroma. The back epithelial laj-er shows no change in direction. The 

 section is very imperfectly depigmented (depigmentation of material imbedded in celloidinl. 

 .Stained bv Heidenhain's iron-hæmatoxvlin-eosin method, x looo. 



Fig. 14. A drawing of the posterior surface of the iris in Miosis congenita, made under a 

 binocular microscope, x about 12. 



Fig. 15. A drawing of the posterior surface of a normal iris, from a girl of 17, made under 

 binocular microscope, x about 12. 



