The manner in which this compulsory operation is performed, consists in placing the head of the patient between the knees of the person who is to use the instrument: a second assistant secures the hands, (if the straight-waistcoat be not employed) and a third keeps down the legs. As soon as the mouth is opened, the instrument may be introduced; it presses down the tongue, and keeps the jaws sufficiently asunder to admit of the introduction of the medicine, which should be contained in a vial, or tin pot with a spout, to allow it to run in a small stream. The nose of the patient being held by the left hand of the person who uses the instrument, a small quantity of the medicine is to be poured into the mouth, and when deglutition has commenced, is to be repeated, so as to continue the act of swallowing until the whole be taken. A little address will obviate the determination of the patient to keep his teeth closed: he may be blindfolded at the commencement, which never fails to alarm him, and urges him to enquire what the persons around him are about: causing him to sneeze, by a pinch of snuff, always opens the mouth previously to that convulsion, or tickling the nose with a feather commonly produces the same effect. With delicate females, where one or more of the grinder-teeth are wanting, the finger may be introduced on the inside of the cheek, which being strongly pressed outwards will prevent the patient from biting, and form a sufficient cavity to pour in the liquid. With a wish of speaking confidently on this subject, I have usually performed the business of forcing, more especially amongst the females, and it has, in some degree, rewarded my trouble; it has ascertained the practicability of administering remedies; and it has also afforded the consolation, that, where the means employed have produced no good, the patient has sustained no injury. _Purging._ An opinion has long prevailed, that mad people are particularly constipated, and likewise extremely difficult to be purged. From all the observations I have been able to make, insane patients, on the contrary, are of very delicate and irritable bowels, and are well, and copiously purged, by a common cathartic draught. That, which has been commonly employed at the hospital, was prepared agreeably to the following formula: [Precsription] Infusi sennae [ounce] iss ad [ounce] ij Tincturae sennae [dram] i ad [dram] ij Syrupi spinae cervinae, [dram] i ad [dram] ij. but, within the last seven years, the tinctura jalapij has been substituted for the tinctura sennae. It is so far an improvement, that it operates more speedily, and produces less griping. This medicine seldom fails of procuring four or five stools, and frequently a greater number.