Stn"cture of the Bowel in a Dog.
20 3
detached, is in the modern horse more closely fused with the rest of the tooth and made up into a solid block with it by the interposition of ce mentum. The dentin e and enamel of the top of this pillar have been broken away obliquely in such a manner as to leave an opening into the tooth pulp. This had inflamed, perhaps portions of it had di ed, and the infla mmation was propa gated down throug h the damaged pulp to the root. So far the explanation is simple and recalls similar accidents which ha ve happened with like res ults in dogs , but it is difficult to see how the solid block of a horse's tooth could be fractured ·in such a way if th e tooth was of normal construclion . This particular tooth, however, was not normal: instead of the cementum filling up all of the valleys solidly between the enamelled cusps of its crown, it had failed to do so, and th ere are crescentic pits which should have been filled leading down for a n inch and a half from the surface. Similarly there appears, so far as can be judged from what remains, to have been a de fici ency of cementum around the inner pillar which was thus left comparativ ely un s upport ed a nd more liable to be broke n. In the tooth, therefore, there was an original defect tending to weaken it, and by some accident, possibly the kick of another horse knocking the jaws together, the o utlyinR portion was splintered off. L UXATION OF THE FLEX OR PEDIS TE N DON FROM THE POINT OF THE HOCK. BV
LIE UT . G.
\Y. TYSON ,
ARMV
VETER I NARV DEP ARTM ENT.
T HE patient, a bay mare aged si x years, had been under treatment since October 21, 1904, from a s upposed contusion to the off hock, on which date she -came back from a r econnaissance very la me, and could not put the foot to the ground . To all appearance the injury was an ordinary capped hock, with implication of the bursa. The a nimal was exceedingly difficult to handle, but the swelling a ppea red to be hard a nd lay beneath the tendon , and on manipula tion it was found th at it could be moved off the point of the hock to the outside, but did not cause any pain. It a lso stepped to one side with a " click if the animal moved or put a ny weight on the limb, and when trotted wa s displaced abo ut every third step. almost causing her to fall down. As the patient clearly would never be fit for milita ry dutie:; again, she was sold out of the army . II
STRICTURE OF THE B OW E L IN A DOG . BY A RTHUR PAYNE, M.R. C .V.S., WEVBRIDG E.
THE patien t was an Airedal e terrier which I ha d known since June, 1903 , since which time th e animal had appea red in good health and had never been unde r veterinary treatment, with the exce ption of a dose of worm medicine now a nd again. He always looked in poor condition and was somewhat staid in his manner, with a wistful expression of countenance. I was requested to call a bout J a nuary 18th, as he ba d been vomiting for the last few days. H e was looking very seedy and I found he had refused a ll food for two d ays, and they could not rem'ember