V.-S. Skr. I. M.-N. Kl. 1922. No. 4. /^.^^ 



Fig. 6. A general view 

 of a radial section through 

 the iris. It will be seen 

 that the pupillary part is 

 thick and contains the well- 

 developed sphincter. The 

 intermediary and pupillary 

 parts of the iris, on the 

 other hand, are very thin. 

 Xabout 30. sh. f. indicates 

 the short connecting fibres 

 between the sphincter and 

 the dilatator, and it will 

 be seen how the sphincter 

 draws the dilatator to 

 itself, so that correspon- 

 ding little depressions are 

 formed upon the posterior 

 surface of the iris. — indi- 

 cates places where small 

 quantities of dilatator have 

 developed. 



