584 



THE EYE 



from the flattened inner surface of which fine filaments penetrate 

 the margin of the outer reticular layer. 



The outer segments of both rods and cones are embedded in the 

 cells of the pigment layer, whose delicate filamentous processes 

 project between the rods and cones, frequently extending almost 



11 

 10 



9 



S 



'7 



-6 



-5 



-1 



-a 



FIG. 429. FROM A MERIDIONAL SECTION OF A CHILD'S EYE, SHOWING THE LAYERS OF 

 THE RETINA AT A POINT NEAR THE MARGIN OF THE MACULA LUTEA. 



i, pigment layer ; #, bacillary layer ; #, external limiting membrane (indistinct) ; 4i 

 outer nuclear layer; 5, fibre layer of Henle ; , outer reticular layer; 7, inner nuclear 

 layer; 8, inner reticular layer; 9, ganglion cell layer ; 10, nerve fibre layer; 11, internal 

 limiting membrane (more distinct in Fig. 430) ; a, choroid coat. Ilematein and eosin. 

 Photo, x 400. 



to the external limiting membrane. Both rods and cones are hex- 

 agonal or nearly circular in transaction. The slight intervals be- 

 tween the neighboring elements and the processes of the pigment 



