Cases constantly occur, where, by a slip, a cavity in the road or pavement, a rolling-stone, or any other cause, the leg of a horse is unavoidably thrown into a distorted and unnatural position, from whence ills ensue; the ligamentary junction, and muscular support, may be singly or conjunctively injured, in proportion to the magnitude of the cause by which the accident was sustained. In most occurrences of this description, some difficulty arises in the endeavour to discover the precise _seat_ of _injury_, which is not, by the most judicious and observant investigator, always to be decisively ascertained: amidst such doubts, strict examination should be made to discriminate with certainty between a LAMENESS in the SHOULDER, and a _defect_ in the _foot_; and this investigation is the more indispensibly necessary to be made, because, in strict verification of the ancient adage, "Doctors differ," instances are numerous, where one practitioner _vehemently_ affirms the lameness to be in _one part_, and his veterinarian opponent as _violently_ pronounces it to be in another. There is, however, one kind of clue, if properly attended to, which will generally lead to a ready distinction between a lameness in the foot and an injury in the shoulder; by getting twenty yards before the horse, so as to face him, and having him brought forward with increased action, fixing the eye at the foot, and bringing it gradually up to the chest, the imbecile effort at the _point_ of the SHOULDER attended with pain, and the consequent _bow_ or _drop_ of the _head_, (as if going to fall,) will evidently demonstrate whether the seat of injury is there. On the contrary, in most lamenesses of the FOOT, the subject makes an attempt rather to hop, or to touch the earth lightly with the joint affected, than to give it equal support with the rest upon the ground: a horse lame in the foot, displays it most, the more he is ridden or driven; but a horse who has received an injury in the shoulder, demonstrates it less and less, the more he gets into a perspiration.