THE CORNEAL CORPUSCLES IN INFLAMMATION. 389 



alcohol acidulated with hydrochloric acid. The lines of Hoyer 

 in serous canals, on which Schweigger-Seidel supports his 

 statements, will also be subsequently described. 



Considering the various means that we possess to bring the 

 protoplasmatic plexus of the cornea into view, and further, in 

 consideration of the typical manner in which this plexus makes 

 its appearance in all the cornese that have been examined, it 

 will appear extremely rash to every one who applies analogical 

 conclusions as aids to thought, where this is really permissible, 

 that Schweigger-Seidel, in opposition to every analogy, en- 

 deavours to explain the radiated corneal corpuscles as illusory 

 cells caused by the excretion of a peculiarly distributed inter- 

 fibrillar cementing substance. 



THE BEHAVIOUR OF THE CORNEAL CORPUSCLES IN IN- 

 FLAMMATION OF THE CORNEA, AND THE ORIGIN OF THE 

 MIGRATING CELLS. To decide the just-mentioned controversy 

 it is of fundamental importance to determine the behaviour 

 of the corneal corpuscles in inflammation. Before we 

 quitted the subject of the migrating cells we alluded to the 

 various views which have lately been advanced upon their 

 origin. We were led finally to the essay of Strieker and 

 N orris.* 



The latter have demonstrated that ulcerated corneae, treated 

 at various periods after the application of the caustic with 

 chloride of gold, which colours the migrating cells as beauti- 

 fully as the comeal corpuscles, give images which show a 

 considerable proliferation of nuclei in the corneal corpuscles. 

 These corneal corpuscles become converted into clusters of 

 nuclei ; and the examination of other specimens makes it ex- 

 tremely probable, from the relative proportion borne by the 

 corneal corpuscles to the migrating cells at the same spot, that 

 the latter develop from the former through the intermediation 

 of these multi-nucleated masses. 



Ulcerated cornese examined in the iodine cell give the 

 most beautiful examples of the appearances described by 

 Strieker and Norris. Indeed, all the intermediate stages may 



* Loc. cit. 



