The most interesting thing in the first book of his surgery is undoubtedly his declaration that all wounds should be treated only with wine and bandaging. Wine he insists on as the best possible dressing for wounds. It was the most readily available antiseptic that they had at that time, and undoubtedly both his father's recommendation of it and his own favorable experience with it were due to this quality. It must have acted as an excellent inhibitive agent of many of the simple forms of pus formation. At the conclusion of this first book he emphasizes that it is extremely important for the healing of wounds that the patient should have good blood, and this can only be obtained from suitable nutrition. It is essential therefore for the physician to be familiar with the foods which produce good blood in order that his wounded patients may be fed appropriately. He suggests, then, a number of articles of diet which are particularly useful in producing such a favorable state of the tissues as will bring about the rebirth of flesh and the adhesion of wound surfaces. Shortly before he emphasizes the necessity for not injuring nerves, though if nerves have been cut they should be brought together as carefully as possible, the wound edges being then approximated. Probably the most interesting feature for our generation of the great text-books of the surgeons of the medieval universities is the occurrence in them of definite directions for securing union in surgical wounds, at least by first intention and their insistence on keeping wounds clear. The expression union by first intention comes to us from the olden time. They even boasted that the scars left after their incisions were often so small as to be scarcely noticeable. Such expressions of course could only have come from men who had succeeded in solving some of the problems of antisepsis that were solved once more in the generation preceding our own. With regard to their treatment of wounds, Professor Clifford Allbutt says:[19] "They washed the wound with wine, scrupulously removing every foreign particle; then they brought the edges together, not allowing wine nor anything else to remain within--dry adhesive surfaces were their desire. Nature, they said, produces the means of union in a viscous exudation, or natural balm, as it was afterwards called by Paracelsus, Pare, and Wurtz. In older wounds they did their best to obtain union by cleansing, desiccation, and refreshing of the edges. Upon the outer surface they laid only lint steeped in wine. Powders they regarded as too desiccating, for powder shuts in decomposing matters wine after washing, purifying, and drying the raw surfaces evaporates."