As all the subsequent authorities, whether Greek or Arabian, adopt the views of Galen, we need not enter into the detail of their plans of treatment. See Psellus (Opus Medicum); Avicenna (i, 3, 2); Rhases (Contin. xxxi); Alsaharavius (Pract. xxxi, 11); Averrhoes (Collig. vi, 8; Collect. ii, 15.) The bath, emollient friction, diluent food, and quietude are the remedies generally recommended by all the ancient authorities; and they are directed with a nice discrimination that cannot be too much admired. Syrasis, one of Avicenna’s expositors, gives the rules of treatment with great judgment. Prosper Alpinus gives a fair account of the ancient doctrines on this subject. (Meth. Med. iv, 16, and de Præsag. Vita et Morte, ii, 21.) SECT. XXI.—ON CONSTRICTION OF THE SKIN. Constriction is occasioned either by obstruction or contraction of the pores. Obstruction is produced either by the quantity or thickness of crude and indigested humours, and contraction by such things as are cold or astringent, or desiccative. Upon stripping the body, the affection is at once recognized by the paleness, hardness, and contraction of the skin, and by the body’s being heated with difficulty during exercise. Calefacient remedies are the proper cure for this state of body, and therefore we must have recourse to the strongest exercise and the hottest baths, and the time of remaining in the cold bath must not be long, nor must the water be very cold. And when about to put on their clothes, let their bodies be anointed with a sweet and thin oil, of a moderately heating quality. Obstructions of the skin are also properly cured by the oil of dill, (more particularly if the dill had been green,) and by the oil of black poplars. * * * * * COMMENTARY. This Section is taken from Oribasius. (Synops. v, 16.) But a somewhat fuller account is given by Galen. (Hyg. iii, 10.) Like our author, he states, that this affection is occasioned, either by a collection of thick viscid humours in the body, or by contraction, that is to say, spasm of the cutaneous pores. It is generally brought on, he says, by exposure to cold, or going into an astringent bath. He gives very minute directions about the treatment, recommending hot baths, and friction with oils of a calefacient and attenuant nature. See also Aëtius (iv, 46); and Actuarius (Meth. Med. iii, 16.) Avicenna treats of it in the same terms as Galen. (i, 3, 3, 15.) SECT. XXII.—ON SPONTANEOUS LASSITUDE.