The co 



CONNECTIVE TISSUE. 



175 



The cornea of the cat, prepared after my method, splits readily, and its 

 lamellae, after turning dark enough by the influence of daylight, appear under 

 the microscope throughout their whole extent strewn over with numerous, 

 richly ramifying, dark violet corpuscles. In many of the latter the nuclei are 

 distinctly visible ; the corpuscles themselves crowded with dark granules ; the 

 basis-substance light, pale violet, and also having a granular appearance. I 

 have searched through a great many lamellae, but I have never found any 

 corpuscles that did not shoot off into branches ; everywhere and always I met 

 with only ramifying, dark violet corpuscles, with numerous connections and 

 in different strata of varying sizes. The dark violet fields fully coincide with 

 the light spaces of the silver-stained cornea as to size, figure, and connections, 

 as has been stated by W. Kuehne. The only difference is that in the silver 



I 



FIG. 67. LAMELLA OF THE CORNEA OF A CAT, Two YEARS OLD, STAINED 

 WITH A ONE-HALF PER CENT. SOLUTION OF CHLORIDE OF GOLD, AFTER 

 HAVING BEEN SOAKED WITH DILUTED LACTIC ACID. [PUBLISHED IN 1878. ] 



P, dark violet fields, the cornea corpuscles, with only a few broad offshoots, but numerous 

 dark violet, thread-like connections, non-medullated nerve-fibers, N, the latter partly travers- 

 ing the cornea corpuscles and partly joining the net- work of the same ; between the cornea 

 corpuscles and the net- work of the basis-substance, _B, extremely fine retiform connections 

 are present ; the latter net-work also connects with delicate nerve fibrillse, JR. Magnified 

 1000 diameters. 



specimen light fields are visible in a dark ground, while in the gold specimen 

 the dark corpuscles appear in a light ground pictures which correspond 

 with each other as the negative with the positive photograph. 



Gold specimens examined with high powers (800-1200) show that the 

 dark violet ramifying corpuscles, without exception, have a retiform structure, 

 and that the nucleoli, the contours of the nuclei, and all the granules are con- 

 nected with one another by innumerable fine threads. The whole net-work 



