334 
PLEUROPNEUMONIA. 
inflamed, but otherwise uninjured by the passage of the stone, 
except near to the external opening. 
It is evident from the state of the viscera that the emaciated 
condition of the animal depended chiefly on the disease of 
the kidneys, and that his death arose from a rupture of one 
of these organs. 
Description of the Calculus- — Form, an irregular triangle, 
with flattened sides, one being more so than the other. Length, 
4 inches ; greatest breadth, 3i inches, gradually tapering to 
a somewhat rounded point ; greatest thickness, inches ; 
weight, 11| ounces avoirdupois . General surface granulated, 
especially on the rounder side of the concretion. On the 
opposite side, and extending around the edges is a crystalline 
deposit of phosphate of lime, which reflects the light from 
thousands of minute facets. The colour on this side of the cal- 
culus is a yellowish-brown. Towards the apex of the triangle, 
on the convex side, is a thin deposit of a yellow colour, which 
also reflects light very strongly ; and over this, here and there, 
is laid a whitish deposit, which is evidently carbonate of lime. 
The chemical analysis and microscopic appearances agreed 
in proving the concretion to be composed principally of the 
phosphate and carbonate of lime, the latter being in excess.] 
Facts and Observations. 
PLEURO-PNEUMONIA. 
We learn from Mr. H. E. Wilkinson, M.R.C.V.S., New- 
castle-upon-Tyne, that pleuro-pneumonia is producing exten- 
sive ravages among the cattle at the Cape of Good Hope. 
Mr. Wilkinson has received a communicaton from Mr. G. A. 
Hutton, a member both of the medical and veterinary pro- 
fessions, who is stationed at Fort Peddie as an assistant 
army surgeon, requesting him to collect all the information 
he possibly can on the inoculation of cattle as a means to 
prevent the disease, and to forward it without delay. Mr. 
Hutton has received instructions from the Governor, Sir 
George Grey, to investigate this subject. 
We find also, that the same disease is destroying very 
many of the cattle in the West India Islands. Mr. Shelford. 
M.R.C.V.S., St. Kitts, has sent us some interesting parti- 
culars respecting it, for which he has our thanks. He has 
likewise promised us a detailed account of these cases. 
