Galen rejected the atomism of Democritus and Epicurus, in which the atoms were indivisible particles differing in shape and size, but not differing in quality as chemical atoms are supposed to do. He credits Democritus with the view that such qualities as color and taste are sensed by us from the concourse of atoms, but do not reside in the atoms themselves.[612] Galen also makes the criticism that the mere regrouping of “impassive and immutable” atoms is not enough to account for the new properties of the compound, which are often very different from those of the constituents, as when “we alter the qualities of medicines in artificial mixtures.”[613] Thus he virtually says that the purely physical atomism of Democritus will not account for what to-day we call chemical change. He also, as we shall see, rejected Epicurus’ theory of a world of nature ruled by blind chance.
Application of the theory of four qualities in medicine.
Galen of course thought that a dry medicine was good for a moist disease, and that in a compound medicine, by mixing a very cold with a slightly cold drug in varying proportions a medicine of any desired degree of coldness might be obtained.[614] In general he regarded solids like stones and metals as dry and cold, while he thought that hot and moist objects tended to evaporate rapidly into air.[615] So he declared that dryness of solid bodies was incurable, while he believed that children’s bodies were more easily dissolved than adults’ because moister and warmer.[616] The Stoics and many physicians believed that heat prolonged life, but Asclepiades pointed out that the Ethiopians are old at thirty because the hot sun dries up their bodies so, while the inhabitants of Britain sometimes live to be one hundred and twenty years old. This last, however, was regarded as probably due to the fact that their thicker skins conserved their innate heat longer.[617]
Galen’s therapeutics obsolete.
As an offset to the evidence which will be presented later of the traces of occult virtues, magic, and astrology in Galen’s therapeutics I should like to be able to indicate the good points in it. But his entire system, like the four quality theory upon which it is largely based, seems now obsolete, and what evidenced his superiority to other physicians in his own day would probably strike the modern reader only as a token of his distinct inferiority to present practice. Eighty odd years of modern medical progress since have added further emphasis to Daremberg’s declaration that we have had to throw overboard “much of his physiology, nearly all of his pathology and general therapeutics.”[618]
Some of his medical notions.
Nevertheless, we may note a few specimens which perhaps represent his ordinary theory and practice as distinguished from passages in which the influence of magic enters. He holds that bleeding and cold drink are the two chief remedies for fever.[619] He notes that children occasionally resemble their grandparents rather than their parents.[620] He disputes the assertion of Epicurus—one by which some of his followers failed to be guided—that there is no benefit to health in Aphrodite, and contends that at certain intervals and in certain individuals and circumstances sexual intercourse is beneficial.[621] His discussion of anodynes and stupor or sleep-producing medicines shows that the ancients had anaesthetics of a sort.[622] He recognized the importance of breathing plenty of fresh, invigorating, and unpolluted air, free from any intermixture of impurity from mines, pits, or ovens, or of putridity from decaying vegetable or animal matter, or of noxious vapors from stagnant water, swamps, and rivers.[623] As was usual in ancient and medieval times, he attributes plagues to the corruption of the air, which poisons men breathing it, and tells how Hippocrates tried to allay a plague at Athens by purifying the air by fumigation with fires, odors, and unguents.[624]
Two of Galen’s cases.
Two specimens may be given of Galen’s accounts of his own cases. In the first, some cheese, which he had told his servants to take away as too sharp, when mixed with boiled salt pork and applied to the joints, proved very helpful to a gouty patient and to several others whom he induced to try it.[625] In the second case Galen administered the following heroic treatment to a woman at Rome who was afflicted with catarrh to the point of throwing up blood.[626] He did not deem it wise to bleed her, since for four days past she had gone almost without food. Instead he ordered a sharp clyster, rubbed and bound her hands and feet with a hot drug, shaved her head and put on it a medicament made of doves’ dung. After three hours she was bathed, care being taken that nothing oily touched her head, which was then covered up. At first he fed her only gruel, afterwards some bitter autumn fruit, and as she was about to go to sleep he administered a medicament made from vipers four months before. On the second day came more rubbing and binding except the head, and at evening a somewhat smaller dose of the viper remedy. Again she slept well and in the morning he gave her a large dose of cooked honey. Again her body was well rubbed and she was given barley water and a little bread to eat. On the fourth day an older and therefore stronger variety of viper-remedy was administered and her head was covered with the same medicament as before. Its properties, Galen explains, are vehemently drying and heating. Again she was given a bath and a little food. On the fifth day Galen ventured to purge her lungs, but he returned at intervals to the imposition upon her head. Meanwhile he continued the process of rubbing, bathing, and dieting, until finally the patient was well again,—a truly remarkable cure!
His power of rapid observation and inference.