PLATE 1 



EXPLANATION OF FIGURES 



1 View of the fundus of the adult right eye as seen along the axis of vision 

 after the removal of the anterior part by sectioning through the equatorial region. 

 A, the area centralis with the fovea centralis appearing as a black dot in the 

 center; Op, optic nerve entrance; P, pecten as seen looking down on the free 

 edge. X 12. 



2 Side view of the pecten, showing the arrangement of the folds and general 

 shape. A-A, indicates the plane of section for fig. 3; B-B, the plane of section 

 for fig. 4. X 35. 



3 Cross-section of the pecten at right angles to the pecten through the region 

 A-A of fig. 2. a, artery of one fold branching from the artery ab, at the base 

 of the pecten; c, small arteries and capillaries leading from the central artery to 

 the lateral veins of each fold, v -v; Vb, vein at the base of the pecten into which 

 the lateral veins of each fold empty. X 39. 



4 Cross-section at right angles to the pecten through the portion B-B, fig. 

 2. a, central artery and v, peripheral veins corresponding to a and v of fig. 3. 

 X 47. 



5 Enlarged view of the fovea, F, surrounded by its area. X 80. 



436 



