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 

 j8. fig. 155. and of d 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 flattish 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 j3 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. 



