II VISION 



Visual System of the Elasmobranchs: State of the Art 1960-1975 



Samuel H. Gruber and Joel L. Cohen 11 



Refraction and Accommodation of the Elasmobranch Eye 



J. G. Sivak 107 



Brain Organization in the Cartilaginous Fishes 



R. Glenn Northcutt 117 



Behavioral Studies Correlated with Central Nervous System Integration 

 of Vision in Sharks 



R. Curtis Graeber 195 



