DR. MARTIN BARRY ON THE CORPUSCLES OF THE BLOOD. 
607 
Fallopian tube in a Rabbit killed 5^ hours post coitum. The vessels were Jilled with 
blood-corpuscles apparently to the exclusion of surrounding fluid. The corpuscles, in 
depth of colour, cell-like form, and general appearance, resembled those above de- 
scribed as entering into the formation of muscular fibre ; but in most of them the 
usual place of the contained pellucid object was occupied by a substance which was 
obscure and dark, though presenting in some of the corpuscles a pellucid central 
point. This, however — from observations on the varying state of the interior of nu- 
clei, and the continual origin there of fresh objects, recorded in my “ Third Series” — 
so far from constituting a difference, seems to furnish a confirmation of my views as 
to the nature of the pellucid objects in question (par. 38.). — The largest vessel in 
this figure measured in external diameter Rot I have seen a vessel so filled, of 
many times this size. 
45. The description now given of fig. 20. is applicable to the states of capillaries 
constantly observed at the period in question. The figure shows, that the corpuscles, 
having assumed a more or less globular or elliptic form, so completely fill their vessels 
as to be compressed into polyhedral shapes, and even to produce inequalities in the 
calibre of their vessels. When examined immediately after death, the contents of 
such vessels have in some instances exhibited here and there a slight degree of mo- 
tion. 
46. The vessels constituting a network under the epithelium-cells which carry cilia, 
and present the frill-like appearance in the outline fig. 19-f~,‘ are filled with corpuscles 
in the above altered states^. In other parts (fig. 21.) vessels are found so filled, which 
do not exhibit the same immediate connexion with the cilia-bearing cells. 
47. I have seen both in the Fallopian tube and on its fimbriated extremity, a curious 
network (fig. 22.), apparently formed by the coalescence of blood-corpuscles, which, 
like those entering into the formation of the chorion, seemed for this purpose to have 
sent out processes or arms. The finest ramifications in arborescent states of the capil- 
laries like that in fig. 21, have sometimes appeared to pass into a network of this 
kind§. 
48. The above-described condition of the blood-corpuscles during vital turgescence 
of the vessels, I think deserving of consideration, in connexion with many of the phe- 
nomena attending local accumulations of blood, both in health and in disease; and 
more especially with reference to increased pulsation, the exudation of colourless 
fluid, and the heat and redness of inflamed parts. 
49. Incipient epithelium-cells often present appearances which almost suggest the 
idea that these too are changed corpuscles of the blood. Compare in Plate XXIX. 
figs. 10, 11 with fig. 12. It is at least difficult to draw a line by which the two can 
t See the explanation of the Plates. 
I It is a part of fig. 19. which is represented on a larger scale in fig. 20. 
§ On one occasion I observed a vermicular motion in a minute portion of such a network. 
