Avicenna’s directions are exceedingly minute, and seemingly very judicious. He cautions against using drastic purgatives, and expresses himself doubtfully of the effect of venesection. His practice consists principally in the administration of gentle purgatives, diluent and refrigerant medicines. He approves of pomegranates, plums, and water-melons. Averrhoes lays down the same principles of practice. (Collig. vii, 11.) Haly Abbas states that, as it is the nature of these fevers to occasion heat and dryness of the body, they are to be treated with diluents and refrigerants. Agreeably to these principles, he directs us to give clysters and gentle laxatives, to use the tepid affusion, and the like. (Pract. iii, 12.) Alsaharavius recommends similar treatment. Rhases, like Haly, recommends refrigerants and diluents. He approves of cooling purgatives, such as a combination of myrobalans and scammony, or a draught made from prunes and manna. He speaks favorably of emetics. Several of his authorities recommend the bath, and others approve of wormwood. (Contin. xxx.) It will be remarked that many of the ancient authorities recommend the tepid bath for the cure of tertian intermittents. Prosper Alpinus informs us that he had seen this practice successfully pursued by the Egyptian physicians. (De Med. Ægypt.) SECT. XXI.—THE CURE OF SPURIOUS TERTIANS. It does not suit with spurious tertians to bathe at the commencement, nor until symptoms of concoction have made their appearance. Neither does it answer to give food every day, but every alternate day will be sufficient. Rest and warm applications to the hypochondriac region agree with them, also broths of easy digestion, and clysters not very emollient. And if detraction of blood be expedient, it ought by no means to be omitted. The nature of the diet ought not upon the whole to be cooling and diluent, but things of a more incisive nature ought to be added. They are particularly benefited by the juice of ptisan, to which have been added pepper, hyssop, sweet marjoram, and spikenard. Also, add pepper to honied water, boil, and give it to drink, and likewise everything which will promote the secretion of urine, except those things which are of a very heating and desiccant nature. In particular, after the seventh day, give wormwood; and many have been benefited by drinking oxymel, and taking gentle laxatives. A vomit taken with food is very beneficial to those in whom the affection is of long continuance. * * * * *