The reader is also referred to Haly Abbas for a copious account of the operation, and the circumstances under which it may be performed. It is contra-indicated, he says, when the bowels are loaded with vitiated fæces. He allows it to be performed even after seventy years of age, provided the patient be of a vigorous constitution. (Pract. ix, 2.)

Rhases, with admirable judgment, condenses all the information supplied by preceding authorities, and mixes it up with his own personal observations. He forbids us to give food immediately after bleeding, as the empty veins will absorb the chyle before it is properly digested, which will prove a pabulum of disease. For the same reason, he, like the others, forbids bleeding when the stomach is loaded with crudities, lest they should be absorbed, and carried over the system. In retention of the menses he directs us to open the saphena, or to apply a cupping instrument to the ankle. When the disease is an acute attack of inflammation, he recommends us to abstract blood fully from an opposite part, so as to procure revulsion; but when it is a chronic affection, he advises to take it from the part affected. (Contin. xxviii.) He enjoins, as a prudent precaution in bleeding a person who is intoxicated, to apply two bandages about the arm, and to have proper attendants to restrain the bleeding, which is often difficult to stop in such cases. (Ad Mansor. vii, 21.)

The veterinary surgeons practised bleeding freely in the treatment of the diseases of cattle. Vegetius, the great authority on this subject, mentions that many persons bled their cattle every year, in the spring. He adds, however, that the ancient and more prudent authorities disapproved of indiscriminate depletion. (Mulom. i, 22.)

SECT. XLI.—ON CUPPING.

We must not have recourse to cupping at the commencement of complaints, nor when the body is in a plethoric state, but when the general system has been evacuated, and when there is no defluxion any longer to the part, and especially when there is a necessity of removing, dislodging, and determining something outwardly. Dry cupping then dissipates flatulence, stops defluxions to the stomach, attracts blood to a part, and stops it again, when determined to a part, if applied to the opposite parts; and it also occasions a translation from the deep-seated parts to the surface, and on the whole produces a metastasis of the fluids, and an evacuation of the spirits. But cupping with scarifications facilitates the evacuation of the offending causes, which it manifestly brings from the deep-seated parts; for it produces the discharge not only of blood but of the other humours, and especially if applied with much heat. And if we wish to make the abstraction from parts that are fleshy, we must first scarify and then apply the cupping instrument; but if the part is not fleshy, we must first have recourse to dry cupping, and when the parts becomes swelled up, we scarify and apply the cupping instrument again. If we wish to make but a small evacuation we must be satisfied with one incision, but if we wish much we must make several. And if we apprehend that the contained blood is of a thinner consistence we will make superficial scarifications, but if of a thicker, deep-seated. When we wish to evacuate coagulated blood, occasioned by a blow, we must be regulated as to the depth of the incisions by the thickness of the skin above. Some have devised an instrument for this purpose, by joining three equal lancets together, so that by one application it may produce three incisions, but we consider it inconvenient, and use a simple lancet. Others have used cupping instruments of glass, in order that the quantity of blood which is evacuated may be seen; but those made of copper have a more powerful attraction, as being able to endure a stronger fire, whereas those of glass are apt to break. But such as draw out the blood by sucking with the mouth through horns, evacuate less, but do not dry, like those applied with fire. If necessary, when we are about to apply the cupping instrument, having placed the limb in an erect posture, we fasten it to the side; for if we apply the lamp above when lying, the wick falling upon the skin with the flame burns in a painful manner, whereas there is no necessity for this. Sometimes the size of the instrument is proportioned to the part on which it is applied; and on that account there is a great variety of cupping instruments with regard to smallness and greatness of size. For the same reason, those which are made with longer necks and broader bellies are possessed of a stronger power of attraction. We must avoid applying the cupping instrument near the breasts, for sometimes they fall into it, and swelling greatly, render the removal difficult, and in that case sponges out of hot water are to be applied round the cupping instrument, which make it relax. But if even with this it do not fall off we must perforate it.

Commentary. On this mode of abstracting blood, and of altering its determination, the records of ancient surgery are so full of information that our only difficulty lies in selection.

It appears that the father of medicine and his successors practised cupping. (De Articulis, 49, and de Medico, 6.)

Celsus mentions two kinds of cupping instruments, the one being made of horn, and the other of copper. Those of copper were open at one end and shut at the other. Those of horn had a larger opening at one end and a smaller at the other. A piece of cloth was set on fire and thrown into the copper one, and its mouth was then fitted to the body and pressed on until it fastened. In applying the one made of horn, the air was exhausted by sucking at the smaller end, which was then covered up with wax, and in this state it would fasten to the part. He remarks that when the part to which the instrument is applied had been previously scarified, blood is discharged, but otherwise nothing but spirits. He states that the principal use of the cupping instrument is to remove any local affection when the general constitution is sound. Upon the whole, he considers it to be a safer but less efficacious remedy than venesection. Cupping, he adds, is to be had recourse to in chronic diseases, in order to remove any corrupted matter which may be seated in a part; and in acute, when the strength will not allow of venesection. (ii, 11.)

According to Galen, cupping is useful after evacuation, but does not answer when there is plethora. In inflammation of the brain and its membranes, therefore, he forbids cupping at the commencement, and also in inflammation of other parts, until the defluxion is stopped and the general system has been evacuated; and states that the object of cupping in such diseases is to move and determine the inflammatory particles outwards. In general, he advises us not to apply the instrument to the part affected, but to the adjacent part, with the view of producing revulsion, de hirud. revuls. cucurb., &c. He likewise gives an interesting account of leeches. He recommends their tails to be clipped off when it is wished to abstract much blood by means of a few leeches. (Ibid.)