. Quain's elements of anatomy . t without entirelyfilling them, the room left serving for the passage of lymph and lymph-corpuscles. The protoplasm of the corpuscles is clear, except in theneighbourhood of the nucleus, where it is more granular ; the cells sendbranching processes along the anastomosing canals of the cell-spaces,which join with those of neighbouring corpuscles. In vertical sectionsthe corpuscles appear fusiform (fig. 329, c), but horizontal sections showthem to be flattened conformably with the surface (fig. 330). 396 THE EYE. In the tuman cornea the cell-spaces can be filled w
. Quain's elements of anatomy . t without entirelyfilling them, the room left serving for the passage of lymph and lymph-corpuscles. The protoplasm of the corpuscles is clear, except in theneighbourhood of the nucleus, where it is more granular ; the cells sendbranching processes along the anastomosing canals of the cell-spaces,which join with those of neighbouring corpuscles. In vertical sectionsthe corpuscles appear fusiform (fig. 329, c), but horizontal sections showthem to be flattened conformably with the surface (fig. 330). 396 THE EYE. In the tuman cornea the cell-spaces can be filled with fluid injection byinserting the nozzle of a fine syringe into the tissue, and employing a very lowpressure; in this way a network of anastomosing stellate figures is obtained(Recklinghausens canals) ; if, however, the injection-fluid be too consistent, orif too great force be employed, the injection becomes extravasated in the inter-stices of the fibril-bundles, the direction of which it takes ; and the appearance Fig. EE23CSS33S5SiS3S353-23S Fig. 329.—Vektical section of human cornea fbom neab the margin (Waldeyer). Magnified. 1, epithelium ; 2, anterior homogBneous lamina ; 3, substantia propria corneas; 4, pos-terior homogeneous (elastic) lamina; 5, epithelium of the anterior chamber; a, obliquefibres in the anterior layer of the substantia propria ; b, lamellte the fibres of Mhich arecut across, producing a dotted appearance ; c, corneal corpuscles appearing fusiform insection ; d, lamellae the fibres of which are cut longitudinally ; e, transition to the sclerotic,with more distinct fibrillation, and surmounted by a thicker epithelium ; /, small blood-vessels cut across near the margin of the cornea. STEUCTUEE OF THE COENEA. 397 is produced of minute swollen tubular passages running at right angles to oneanother in the different layers (Bowmans corneal tubes). This appearance maystill more readily be obtained if air is injected into the tissue instead of mercur
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