60 



EVOLUTION OF THE HUMAN EYE 



ous and form a considerably broader band. The ciliary 

 muscle in apes (Figs. 15 and 16) and man shows an extensive 



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Fig. 11.— Ciliary body of the rabbit. 





In,. 12.— Ciliary body of the wallaby. 



increase in development on that met with in any of the 

 other mammals. Not only is it wider and longer, but its 



