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Semi-diagrammatic drawings of cross-sections of the visual cells 
in five regions of the retina. Fig. 5, anterior; fig 6, posterior; fig. 7, fundus; fig. 8, 
dorsal; fig. 9, ventral; r, rod; c, cone; cd, double-cone. X 232. 
Fig. 10 Semi-diagrammatie drawing of a cross-section of the optic nerve 
(no. 4, table 15) near the eyeball. X 431. 
Fig. 11 Semi-diagrammatic drawing of the same optic nerve near the chiasma. 
Figs. 5 to 9 
o, lumen of the nerve. 431. 
Fig. 12 Semi-diagrammatic drawing of a cross-section of nerve (no. 1, table 15) 
near the eyeball. » 485. 
444 
