The membrane called tunica adnata in our translation is the “ima tunica” of Celsus, and the “panniculus proprius” of the Arabian translation of Albucasis, and seems to be the same as the tunica albuginea of modern anatomists. Sprengel gives an excellent history of the operation of hydrocele. (Hist. de la Méd. 18, 8.) SECT. LXIII.—ON SARCOCELE AND TOPHI OF THE TESTICLES. When flesh is formed in any part of the bodies which are connected by the scrotum, it gives rise to the disease called sarcocele. This arises either from some obscure cause, the testicle being attacked with a defluxion and becoming indurated, or from a blow, or from unskilful treatment after the operation for hernia. Its consequences are, a swelling of the same colour, with hardness; when the swelling is of a scirrhous nature, it is devoid of colour and sensibility; and when it is malignant there are sharp pains. When going to operate we place the patient as in the former case, and make the incisions in like manner; and if the complaint is occasioned by the growth of a fleshy tumour to the testicle, we divide the dartos and tunica vaginalis in like manner; then stretching the testicle and bringing it to the outside of the vaginalis, we separate the cremaster from the vessels, tie a ligature round the vessels, and cut the cremaster; then we remove the testicle affected with the fleshy tumour as a foreign body. But if the fleshy tumour be formed about any of the coats of the testicle or its vessels, having divided the scrotum and the membranes lying under the flesh, we must dissect out the whole fleshy tumour. But if the posterior process (“epididymis”?) be affected with sarcocele, having dissected all the surrounding parts, we remove the testicle along with it; for it is impossible for the testicle to continue without it. If tophi be formed about the testicle and the tunica vaginalis, they may be distinguished from sarcocele and hydrocele by their resistance, hardness, and inequality, and are to be operated upon as sarcocele. * * * * * COMMENTARY. Celsus describes and recommends the same operations. He directs us to divide the nerve by which the testicle is suspended (the cremaster?), then to tie the veins and arteries at the groin with a thread, and cut them below the ligature. When a fleshy tumour is formed between the coats he recommends us to cut it out. (vii, 22, 23.) When the parts are indurated he forbids us to meddle with them. Albucasis directs us to separate the cremaster from the vessels, to tie the vessels, and then remove the testicle from the surrounding parts. When the disease consists of a fleshy tumour which adheres to the testicle he directs us to cut it out. After the operation the wound is to be filled with rose-oil and wine. (Chirurg. ii, 63.) The other Arabians treat of the operation less minutely, with the exception of Haly Abbas, who describes it exactly as Albucasis. (Pract. ix, 48.)