Fig. 18: Specimen No. 99.--A large lens in its capsule is dislocated upward and inward, and is adherent to the retina by inflammatory bands. The retina shows very numerous white dots. There is a tendency to equatorial scleral staphyloma. Fig. 19: Specimen No. 171.--The retina is totally detached and rolled up tight; cysts both false and true are to be seen in it. The lens is imbedded in a mass of inflammatory exudate, matted to the iris and ciliary body in front, and to the retina behind; the ciliary body is detached. The coagulated subretinal exudate gives the specimen the appearance of a half-marble. The sclera is folded owing to the shrinking of the eyeball. Fig. 20: Specimen No. 119.--From before backwards can be seen the iris, the remains of the lens capsule, and the thickened anterior layer of the hyaloid. The lens is dislocated backward between the second and third of these, and is wedging them apart. The retina is detached over nearly half the globe; this is in large part determined by the pull of the shrinking thickened anterior hyaloid layer. Fig. 21: Specimen No. 46.--The hard dark nuclear cataract had been depressed; it lies in front of the unruptured anterior hyaloid membrane, and therefore outside the vitreous cavity. [Illustration: PLATE III. Fig. 16 (No. 197).--Left eye, lower half. Fig. 17 (No. 37).--Left eye, lower half. Fig. 18 (No. 99).--Left eye, upper half. Fig. 19 (No. 171).--Left eye, upper half. Fig. 20 (No. 119).--Right eye, upper half. Fig. 21 (No. 46).--Left eye, lower half.] When we come to speak of the changes found in the vitreous, we shall have occasion to refer to the frequency with which the hyaloid body is represented by a shrunken cone with its apex at the optic nerve and its base in the neighbourhood of the ora serrata. This form, which is well known to pathologists, is due to the anatomical attachments of the vitreous body, and to the fact that the latter undergoes shrinkage after being thickened and opacified by the presence of inflammatory exudate. In studying the present collection, one cannot fail to be struck with the fact that the exudate, which fixes, or helps to fix, the lens in its pathologic position, is one with, and part of, this cone-shaped new formation. Before leaving the consideration of this group, we must once again point out that no hard-and-fast line separates it from the preceding one, and that intermediate links between the two can easily be pointed to.