When sufficient time has elapsed from the occurrence of the accident to prevent the ball being replaced, owing to the swelling and contraction of the lids, an incision may be made at the external angle of the eye, so as to divide the lids, which will then admit the eye into its natural position. If not, the lid itself can be raised up and slit far enough to allow its being drawn over the globe. As considerable inflammation generally follows this accident, it will be prudent to bleed the animal and confine him. We have seen eyes replaced, that have been out of their sockets for several hours, perfectly recover their strength and brilliancy. WEAK EYES. Some dogs, particularly several breeds of spaniels, have naturally weak eyes, attended by an over-secretion and constant flow of tears, more particularly when exposed to the sun. When there is no disease of the lachrymal duct, the secretion may be diminished and the eyes strengthened by the daily application of some slightly tonic wash, as No. 1, 2, 3, &c. FISTULA LACHRYMALIS. The lachrymal duct is a small canal, leading from the internal angle of the eye to the nostrils, and is the passage through which the tears escape from the eye. This duct may become closed by inflammation of the lining membrane of the nose, caries of the bone, ulcers, fungous growths, or by the presence of some extraneous substance impacted in it. The tears, no longer having a natural outlet, are necessarily forced over the lids, accompanied, not unfrequently, by a good deal of purulent matter. This canal, when thus obstructed from some one of the above causes, often forms an ulcerous opening at its upper extremity, just below the internal canthus, for the escape of the pus that usually collects in a sac at that point. This perforation is called "Fistula Lachrymalis." The tears, entering the canal at its punctum, are carried along till they pass out at the fistulous opening. Treatment'.--This is a very troublesome affection, and has been pronounced incurable by some writers. However, we would not hesitate making an attempt at relieving a favourite or valuable dog of this disagreeable deformity. We should first endeavour to clear out the nasal canal, either by means of a minute flexible probe, or by directing a stream of water from a suitable syringe through its course. A small silver or copper style may then be placed in the canal to keep it open, as also to direct the tears through the natural route. This being done, and the dog confined in such a way as not to be able to scratch or rub the eye, the fistulous opening might close up in a short time. However, it might be necessary to wear the style for many months. In such a case, we see no reason why a wire muzzle, such as used by us after the operation for Entropium, might not be worn for an indefinite period, without any inconvenience to the animal. CARUNCULA LACHRYMALIS AND PLICA SEMILUNARIS, OR HAW.