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EXTRACTS FROM EXCHANGES. 
four and a half months later a calf born from one of these cows 
died, after exhibiting symptoms suspicious of rabies, and two 
months later another calf, also born of one of the cows six and a 
half months before, died of rabies, as proved by inoculation of 
the brain and medulla. All the bitten cows are still in good 
health. The question is asked : is it not possible that the calves 
were bitten by another rabid dog, instead of inheriting the 
disease from the mothers, which, by the way, are yet well ? 
The New Photography in Veterinary Practice [By 
Mr. F. Hobday ] .—The application of Roentgen’s rays to veter¬ 
inary practice is not a thing which can be smiled at, and cer¬ 
tainly will show its usefulness in large as well as in small 
animals. The author relates, in the fournal of Comparative 
Pathology , of Mr. J. McFadyean, three cases where the practical 
utility of the X rays is demonstrated. Case No. i.—A Persian 
cat, pregnant, was examined to ascertain the number of foetuses in 
utero. The result was not very satisfactory on account of the diffi¬ 
culty offered in bringing her under the influence of anaesthetics. 
Yet the negative obtained permitted of a clear inspection of the 
vertebral column and the pelvis, an indistinct shadowy mass, 
probably the intestines, and an outline of the uterus. Delivery 
of the kittens prevented a third attempt at anaesthesia. Case No. 
2.—A cat which had sustained a fracture of the forearm, had 
remained lame, with shortening of the leg. Some six months 
after he was shown to the author, who made a diagnosis of no 
union of the fracture of the ulna, with a large. swollen fibrous 
union at the lower end of the radius. Amputation was advised, 
but before being performed a photograph of the leg was taken 
by the X rays. The negative confirmed the diagnosis. Case 
No. 3.—A third cat suffering from lameness, and having dis¬ 
tinctly perceptible a foreign body subcutaneously situated in the 
upper and anterior portion of the forearm. The photograph 
illustrated the very position of the foreign body, which was ex¬ 
tracted, and proved to be a flat piece of metal with an exceed¬ 
ingly sharp point. 
Three Uncommon Cases are reported in the Journal of 
Comparative Pathology by Mr. J. Penberthy, under the headings . 
1st. Invagination of the Ccecum of a Horse. —A bay gelding, 
five years old, which was affected with colicky pains, lasting 
some" three weeks without relief, notwithstanding the opiate 
treatment he received, combined with drenches and enemas. 
The temperature had gradually increased from 102 to 106, the 
pulse raised from 56 to 94. At the post-mortem a complete in- 
