COMMENTARY. Celsus thus describes the cirsocele: “Venæ intumescunt; eæque intortæ conglomeratæque a superiore parte, vel ipsum scrotum implent, vel mediam tunicam vel imam: interdum etiam sub imâ tunicâ, circa testiculum nervumque ejus, increscunt.” (vii, 18.) He describes the operation at great length afterwards. If the varicose tumour is upon the scrotum he directs us to burn it with slender and sharp irons, which are to be applied to the veins themselves, but in such a manner as to burn them alone. Then suitable dressings are to be applied for producing cicatrization. When the varicose veins are situated above the middle tunic, an incision is to be made in the groin, the tunic drawn out, and the veins separated from it with a finger or the handle of a scalpel. The veins are afterwards to be tied with a thread above and below; then they are to be cut below, and the testicle restored to its place. When the disease is situated above the third tunic (tunica albuginea?) the middle one must be cut out. Then if only two or three veins are in a varicose state they may be tied, as above directed, at the groin and where they join the testicle and cut out. When the disease is situated between the internal coat and the testicle, he says, there is no other remedy but the removal of the testicle. For this purpose he directs us to secure the arteries and veins with a thread, divide them, and then to cut the nerve by which the testicle is suspended (the cremaster?). (vii, 19 and 22.) He does not treat of pneumatocele. It must be obvious that the pneumatocele of our author was an aneurismal varix or erectile tissue. We see no good reason, therefore, for the animadversions which Heister makes upon his account of it. (See Surgery.) This operation is briefly noticed in the ‘Isagoge’ of Galen, and ‘Meth. Med.’ (xiv.) Albucasis considers it a dangerous operation, but says he will describe it as it was performed by the ancients. He accordingly gives our author’s account of it, directing us to dissect the congeries of vessels from the surrounding parts, to pass a needle, armed with a double thread, under them, and to tie them above and below; then to make a longitudinal incision in them, and to evacuate the feculent fluids which they contain. The wound is afterwards to be dressed with incarnants. If all the vessels are involved in the disease, he directs us to remove the testicle altogether. (Chirurg. ii, 64.) He says he never saw the operation performed for pneumatocele; but that the ancients operated for it in the same manner as for cirsocele. (66.) Avicenna and Rhases treat of the pneumatocele, and recommend carminative applications to it; but they do not describe the surgical operation. Haly Abbas borrows the description of Paulus. (Pract. ix, 49.) SECT. LXV.—ON ENTEROCELE, OR INTESTINAL HERNIA.