the Croonian Lecture. 
* 97 
Plate XII. 
Represents a small eoagulum injected with coloured injec- 
tion, from the arteries of the neighbouring parts. The 
eoagulum was formed in consequence of an hasmorrhage 
from one of the smaller branches of the mesenteric artery, 
and was deposited upon the peritonaeum, near the right groin, 
only 48 hours before death. It is worthy of observation, that 
the arteries through which the injection passed to the coagu- 
lum, are much smaller than the channels in the eoagulum, 
and these channels are largest in the middle. 
The eoagulum extends through the whole breadth of the 
drawing, and the small arteries from the peritonaeum open 
into its substance in several points. The parts are magnified 
35 diameters, or 1225 superficies. 
Plate XIII. 
Represents a portion of human intestine, to which a small 
exudation of coagulable lymph is attached. This is injected 
from a small artery on the external surface of the intestine, 
less in diameter than the canal formed in the eoagulum. 
The opaque bodies lying upon the vein and close to the 
pendulous eoagulum, are uninjected portions of coagulable 
lymph. 
The parts are magnified 12 diameters, or 144 superficies. 
Plate XIV. 
This plate represents a section of a eoagulum of blood that 
had remained in contact with that portion of the tunica vagi- 
