288 On Corpuscles of the Cornea, de. By G. I. Dowdeswell. 
the libro tenero of the vine, and particularly in the cribriform 
vessels, there is undoubtedly found besides starch, also tannin, and 
this in great abundance; this fact will help also to account for 
the physiological action exercised by this substance in the plant. 
I shall soon publish the particulars of the researches alluded to 
in the present preliminary communication. 
V.—On the Changes of the Fixed Corpuscles of the Cornea in the 
Process of Inflammation. By G. F. Dowprswent, B.A. 
Puiate CLXXXIV. 
Srvce the discovery by Von Recklinghausen of the immigration of 
pus-corpuscles into the substance of the cornea in inflammation, 
several observers have alleged that proliferation of the fixed cor- 
puscles of that tissue also occurs; in other words, that the so- 
termed leucocytes are not entirely immigrant, but that some of 
them are formed in the inflamed tissues. It is stated by those who 
take this view of the process, that in a few hours after the establish- 
ment of inflammation the fixed corpuscles begin to alter, that their 
processes are partially retracted and thickened, their outline be- 
coming more distinct, and that at a later period small spherical 
bodies appear in their substance by a process of endogenous cell- 
EXPLANATION OF PLATE CLXXXIV. 
Group I. 
Corpuscles of the Normal Cornea. 
Fic. 1.—T wo corpuscles, isolated, of a vacuolated appearance; nucleus indis- 
tinct, processes much anastomosing. 
Fic. 2.—Two similar corpuscles. 
Fic. 3.—A single corpuscle, showing reduplication of nucleus and nucleolus, 
and what might be taken for segmentation of its substance. 
Fic. 4.—T wo typical normal forms. 
Fic. 5.—A single corpuscle, with very large and strongly defined nucleus. 
Group II. 
Corpuscles of a Cornea forty-eight hours after commencement of inflammation by 
application of Nitrate of Silver. 
Fia. 6—A group of fixed corpuscles (c) and wander cells (wv). The latter are 
seen to be of diversified form and in an active state of cell-division. ‘The appear- 
ances which the fixed corpuscles present are all paralleled in the figures of normal 
pene and, notwithstanding the activity of the inflammation, as evidenced 
y the state of the wander cells, there is no appearance of proliferation nor of any- 
thing abnormal in these. 
Fic. 7.—A corpuscle with conspicuous nucleus and two wander cells (~) cling- 
ing to its processes, 
Fic. 8.—Two corpuscles, the one vacuolated and with nucleus distinct, the 
other similar to Fig. 3, Group I. 
