Book III OF SVPHILIS 277 tors have recourse at once to applying unguents made of caustics, and in former times they used this method mainly. But in my opinion it is better to try first the milder remedies that are less drastic and involve no risk, and certain doctors who have fol— lowed this method have often had good results. After the purgations, they administer certain aromatic drugs that not only dry and deterge, but also subtilize and fortify; for example, aromatic calamus, macer, agalochus, cassia, zedoary, ginger, schinanth, iris and so forth, of which, & decoction seems to be wonderfully efficacious. Some have cured many patients by means of juniper wood alone; others by cypress or citron wood alone. They use a powder of these in the same way as that of guaiaec.!57 i I must now say something about guaiae, because of all reme— dies this is in most general use. 'This tree is imported to us from the so—called Spanish Island (Hayti) in the New World, and the neighboring islands where this malady is especially familiar. But the best kind comes from the island called Beata.'58 'This wood has been imported in many different forms, and these should be noted. At first, large, thick tree trunks used to be brought over; they were very old and con— tained very little white, but much dark, wood. Nowadays it is the boughs that are usually imported, freshly ceut, and they contain much white, but little dark wood; they are far more bitter and more styptic. 'The older wood is sharp rather than bitter or astringent, and more resinous too. Formerly, they used to throw away the outer bark, but it is now used by pref— erence, and even costs more than the other wood. 'This tree seems to be peculiarly suited to furnish all that is required for this disease. For it is composed of the very finest particles, and these are warm to the third degree'5? and very dry too; and it is resinous, hence it has in every way the greatest possible drying power, i. e. by its heat, its essential dryness, and also by its absorbency. It is also sudorific, and can volatilise, lique— fy and absterge the substance of the contagion; finally, since it is resinous too, it offers great resistance to putrefaection and contagion. It seems to have a certain medicinal property also, so that it moves the bowels. But it must be noted that the old wood, since it is sharper, has greater power to dissolve, liquefy and volatilise than the new. 'Therefore, when the sub— stance is thicker and there are many gummata, you should by