STRUCTURE OF THE RETINA. 



FIG. 299. SECTION THROUGH THE INNER LAYERS OF RETINA OF A BIRD, PREPARED- 



BY GOLGI'S METHOD. (R. y Cajal.) 



A, nerve-fibres of optic nerve layer; B, some of these fibres passing through the inner 

 molecular layer to end in an arborisation at the junction of the inner molecular and 

 inner nuclear layers. The layers in this and in the two succeeding cuts are numbered 

 in correspondence with the layers in fig. 2 ( ,7. 



FIG. 300. SECTION ACROSS THE MOLECULAR AND GANGLIONIC LAYERS OF BIRD'S 



RETINA, PREPARED BY GOLGl'S METHOD. (R. y Cajal.) 



Three or four ganglionic cells, A, B, C, and the terminal arborisations of their dendrites, 

 a, 6, c, in the molecular layer, are shown. 



FIG. 301. SECTION OF BIRD'S RETINA, PREPARED BY GOLGI'S METHOD. (R. y Cajal.) 

 A, B, large nerve-cells of inner nuclear layer ; C, neuroglia-cell ; D, small bipolar nerve-cells 

 with one process, a, b, ramifying in the inner molecular layer and the other one ramifying 

 in the outer molecular layer, and extending (E) as far as the rods and cones ; F, G, rod and 

 cone nuclei respectively; H, I, cells with dendrites ramifying in outer molecular layer- 

 J, fibre of Mtiller. 



