37. This accident is, in general, extremely obstinate, when, as in the preceding case, the nerves have experienced a long continued pressure. Under such circumstances, the most powerful means are often ineffectual. Moxa has been oftentimes used by Desault, which he applied over the clavicle, at the very origin of the brachial plexus. The success, with which he at first applied this remedy, did not always accompany his use of it, so that notwithstanding several cures performed by it, yet, to the majority of patients to whom it was applied, it was wholly useless. 39. But, if the head of the humerus make on the nerves but a momentary pressure, and the reduction be accomplished shortly after the paralytic symptoms occur, oftentimes then the insensibility disappears of itself, and the cure may be always greatly assisted by the application of powerful stimulants; such, for instance, as volatile liniment, composed of oil of almonds and ammonia, which Desault frequently employed, and of which he increased the strength, so as to render it rubefacient. CASE IV. Joanna Saq luxated her arm, by falling on her right side, in the month of July, 1788. In the evening of the same day, all the precursory symptoms of paralysis made their appearance. The affection was complete on the day following. The patient was brought to the Hotel-Dieu, where the reduction, being accomplished, afforded no relief. On the third day, the paralysis still continuing, the volatile liniment was directed, in the proportion at first of two drachms of ammonia to an ounce of the oil of almonds. This produced no effect. Being increased in strength on the fifth day, it still appeared to be useless. On the eighth it was made of such a degree of strength, as to occasion slight pustules over the whole of the diseased extremity. On this, motion began to return, feeble at first, but increasing by degrees, till by the sixteenth day, it was as free and perfect as in a natural state. During all the time, the liniment was applied twice a day over the arm and fore-arm, which were at the same time subjected to strong friction during the space of half an hour. 39. The pains which accompany luxations of the humerus, claim in general some attention from the practitioner. These have sometimes arisen to such a height, as to produce real disorder in the animal economy, particularly in luxations inwardly, where, resulting, no doubt, from the compression of the axillary nerves, they render immediate reduction more necessary, and are generally removed by it. § VII. OF THE REDUCTION.