1898.] 



MICROSCOPICAL JOURNAL. 



57 



tlie beautifully curved line which is the membrana limi- 

 tans interna. Immediately back of this layer is found the 

 ganglion layer of the retinal or optic nerve which is com- 

 posed of irregular shaped nucleated cells. Some of these 

 cells have polar prolongations but as a rule it is difficult 

 to make these out. In the center of the eye these cells 

 are rounded or slightly oblong while at the periphery 

 they assume an oblong shape and are larger. Next to 

 the spindle celled layer the ganglion cells become 

 smaller and appear to lie close to the ends of the spindle 





pifiMEAireB 



Tig.IV. 



cells with which they are undoubtedly continuous. The 

 spindle cell layer is made up of long nucleated straight 

 and bent spindle shaped cells which lie close together. 

 In the central portion they are shorter but straight and 

 the ends of the cells are simply rounded ; while upon 

 either side they appear bent and the ends are pointed. 

 The cells in the central portion of the retina are ar- 

 ranged parallel with the polar direction of the eye but 



