118 Transactions, — Miscellaneous. 



dull milky tinge ; not the appearance presented after death, but more 

 opaque. It is difficult to describe the difference, but it will be immediately 

 appreciated when seen. Second, after two hours, or thereabouts, some one 

 point near the centre of the cornea becomes obviously whiter and more 

 opaque than the remainder, and looks rougher and more granular ; in fact, 

 looks like a recent ulcer in the first stage. Third, during the course of six 

 or eight hours the cornea becomes quite opaque, so that no portion of the 

 pupil or iris can be seen ; the epithetial layer peels off in large pieces with 

 great ease ; the whole globe becomes flaccid ; the sclerotic much softened ; 

 the crystalline is slightly less transparent in sheeps' and pigs' eyes, but 

 small eyes may be semi-opaque ; the aqueous humour is turbid; the vitreous 

 reddened but transparent ; the retina, except round the optic nerve, con- 

 verted into dirty-looking pus, mixed with the debris of the pigment layer of 

 the choroid. The recti and other muscles are pale ; the cut extremity of the 

 optic is reddened. When portions of the epithetial layer of the cornea are 

 detached, they appear the colour of whitey-brown paper when wetted, but 

 are more opaque. Under the microscope, to quote from the notes, "The 

 shreds of fibrmous exudation in the anterior chamber are composed of 

 granular masses faintly marked out into cell-like portions. The epithetial 

 layer of the cornea is a mass of proliferating cells, the nuclei of the flat 

 epithetial being much enlarged and quite round ; immense numbers of 

 cells, four or five times the size of a human red corpuscle, and exactly 

 resembling these enlarged nuclei, were floating about in the immediate 

 neighbourhood of these shreds of epithetium. The columnar and spherical 

 cells were all enlarged, and in many the nucleus was showing a tendency to 

 divide." The deeper layers of the cornea are full of young cells, and the 

 normal structure is often quite obstructed by their number. In addition to 

 the shreds of fibrinous exudation in the aqueous, " it contains numbers of 

 detached leucocytes." 



The crystalline shows, without any staining or preparation, its fibrous 

 structure ; the nuclei of the fibres are much enlarged and very distinct. 

 When the crystalline is detached from the eye and immersed directly in 

 blood it assumes a sort of opalescent tint. 



The smaller vessels of the choroid have disappeared, the pigment cells 

 are almost all broken up, and in the most advanced stages nothing but 

 pigment granules can be seen. 



The retina, except just round the optic, is, as has been said, dissolved 

 into pus and debris; all traces of rods, cones, and nerve cells, have disap- 

 peared. The portion adherent to the optic is of a dhty drab colour, and 

 loaded with leucocytes, 



