262 
DR. MARTIN BARRY ON THE CORPUSCLES OF THE BLOOD. 
Fig. 143. Common Fowl ; chick in ovo. Corpuscle in a state analogous to that of 
(3. fig. 155. and of & and /, fig. 142 ; and also having the appearance of 
an altered blood-corpuscle. It was observed, along with many others, 
having a similar condition, in the neighbourhood of the crystalline 
lens. Shreds also were seen, composed of corpuscles in the same state. 
Fig. 144. Ox; foetus of eighteen inches. From the edge of the crystalline. Por- 
tion of a tube filled with corpuscles having the same appearance as 
young corpuscles of the blood. A few of these are represented in the 
figure. Where shaded, the corpuscles were red ; where the corpuscles 
are in outline, the red colouring matter had disappeared. They were 
mere discs, a. The corpuscle was red in the centre (the situation of the 
original cavity or depression), and colourless in the surrounding part. 
Fig. 145. Sheep ; foetus of six inches. From the edge of the crystalline lens. Por- 
tion of a flatfish tube, filled with corpuscles having the same appear- 
ance as corpuscles of the blood. These corpuscles, most of which are 
represented in outline only, were arranged with great regularity ; their 
flat surfaces being in contact with one another. They were blood-red, 
and red colouring matter was seen between or around them. 
Fig. 146. Another part of the same tube, filled in a like manner, but much smaller 
in diameter, and exhibiting a space unoccupied by corpuscles. The 
membrane of the tube very delicate. 
Fig. 147. Another portion of the same tube. The corpuscles exhibited a brilliantly 
pellucid object in the situation of their original cavity or depression ; 
their external part being still red. 
Fig. 148. Twisted portion of a tube of the same kind, and from a similar locality 
in the crystalline lens of the same foetus. The corpuscles were red, 
and in a state which in other respects, also, was similar to that of the 
corpuscles in fig. 147. 
Fig. 149. Ox; foetus of eighteen inches. From the edge of the crystalline lens. 
Portion of a tube filled with corpuscles having the appearance of blood- 
corpuscles in a more or less altered state. These are in outline only. 
Some were round ; others elliptical. Most of them exhibited traces of 
division into discs, which in two instances have been represented in the 
figure. Here and there, these corpuscles were still blood-red ; but 
the most advanced of them had become pale. 
Fig. 150. Ox ; foetus of eighteen inches. From the edge of the crystalline lens. 
Portion of a tube filled with corpuscles having the appearance of more 
or less altered blood-corpuscles. Those on the side a were blood-red ; 
while those on the side (3 had become pale. The latter were also elon- 
gated, and dividing into discs. In some parts, the corpuscles seemed 
to be arranging themselves in lines, as if to form fibres. 
