432 THE CORNEA, BY ALEXANDER ROLLETT. 



which the terminal twigs converging from various directions 

 unite. I have never been able to convince myself of the exist- 

 ence of anastomoses of the various terminal twigs corresponding 

 to such nodal points. Strieker recently showed me a fine 

 plexus in the cornea of the Rabbit, first demonstrated by S. H. 

 Chapman, who had satisfied himself that it was situated on 

 the surface of the external epithelium. 



The preceding statements rest chiefly upon observations 

 made on the cornere of the Pig and Ox, treated with chloride of 



Fig. 391. 



Fig. 391. Portion of the subepithelial nerve plexus of the cornea 

 of the Pig, brought into view by. means of chloride of gold. 



gold. Similar appearances are, however, obtained, differing 

 only in some points of detail, in the other Mammals that have 

 been examined. 



The cornea of the Frog may also be employed in order to 

 obtain extremely good gold preparations (fig. 392), and this 

 possesses the further advantage, that after removal of the epi- 

 thelium it may be brought under the microscope as a whole, 

 whilst the thick cornese of the above-named animals, after im- 

 pregnation with gold and the subsequent reduction of the 

 metal, require to be cut into meridianal and surface slices. 



