The above wood-cut depicts the forceps as they appear when put together; and to render their mode of action more clear, a body indicative of the situation which the tooth would occupy, has been introduced. The advantages which these forceps have over the tooth-key in common use, are so obvious, that the reader will not require they should be pointed out. The benefits which this instrument confers, are indeed great; neither can it be supposed that the principle can be changed, or its adaptation improved upon. For its purpose, the thing appears perfect; and I can speak confidently as to the admirable manner in which it acts. One caution, however, may not be unnecessary. All surgical instruments are capable of being abused, and in exact proportion to their utility is their liability to abuse. With Mr. Gowing's forceps a horse's jaw could be easily broken, or he who did not know the power of the screw, would, if he kept on winding the handle, crush the tooth it was his intention to secure. So much strength is gained that the judgment must be employed to regulate it. Huge as the instrument looks, it requires delicacy in the hand which uses it. With such a tool at his command, a child is in power equal to a giant; and the man therefore must exercise his mind rather than strain his muscles, when he has to operate with it. In cautious hands it gives every facility that could be desired, and is both more certain in its action, and more expeditious in its results than anything of the kind which we at present possess, besides having the further advantage of not requiring those adjustments and unsatisfactory changes which the common instruments necessitate to be made. For extraction, nothing beyond these forceps is wanted: they answer every purpose; but the veterinary surgeon is less frequently called upon to extract, than to shorten the horse's teeth. To this subject Mr. Gowing has likewise given his attention, and it is pleasant to state he has equally succeeded. The ordinary chisel was alike inefficient and dangerous. The guard was not sufficient to prevent the edge from seriously wounding the mouth, and the chisel could remove but a small portion at a time. The shock, moreover, was sustained by the tooth itself, which, transferring the force to the alveolar cavity, was too often the cause of fracture. When cautiously conducted, the operation was tedious, and the struggles of the horse were not devoid of danger. We were possessed of nothing which, at a single blow, could remove the entire bulk of a projecting tooth. To supply this desideratum was Mr. Gowing's object, and the annexed wood-cut will, at a glance, convince the reader that the requirement has been satisfactorily complied with. [Illustration]