FOREIGN VETERINARY JOURNALS. 
285 
The membrane lining the synovial sheath completely changed 
by inflammation. It is thickened through serous and sanguineous 
infiltration ; its aspect is rose-coloured and mammillated, the same as 
that of a suppurative wound at the twenty-fourth or thirty-sixth 
hour of inflammation. The mammillary elevations upon the surface 
appear to be no more than, like those upon suppurating surfaces, 
granulations or cellulo-vascular organised buttons within the 
plastic bed formed by inflammation. The adherence of this mem- 
brane to the indurated tissue exterior to it is most intimate. 
Within the sheath we found a yellowish-white soft matter, 
which seemed nothing more than flocculent albumen coagulated by 
the alcohol contained in the injected tincture. These coagula, in 
their middles, exhibited gangrenous spots, having an infected odour. 
The sheath altogether is considerably enlarged; compared with 
that of the sound hock, its dimensions were more than double. 
There was found a communication between the sheath and the 
hock joint, the passage between them measuring upwards of an 
inch in diameter, and being bordered by a thin duplicature of mem- 
brane of old formation. 
In the interior of the hock joint, the synovial membrane pre- 
sented the same aspect as that lining the sheath ; fringed elonga- 
tions beneath the trochlea of the joint being considerably hyper- 
trophied. 
The articular surface of the tibia had a yellowish tint, and its 
polish was sensibly lessened, the articular cartilage being so thin 
in places that the capillaries of the bones are visible through it. 
And from the middle protuberance of the tibia, at its most pro- 
minent part, the cartilage had quite disappeared, leaving the bone 
bare and softened. The trochlea of the astragalus presented similar 
alterations. 
*** In a future paper on the subject, we are promised the conclu- 
sions deducible from these and some subsequent cases. 
British Medical Journals. 
Extract from the Address of Mr. Penington to the 
Members of the National Institute of Medicine and 
Surgery. 
“ The National Institute will try and carry through its plans in 
the face of every discouragement or difficulty which may present 
itself. It is contemplated immediately to take a house as a per- 
VOL. XX. q q 
