Another ingenious modification, sometimes useful in a short narrow pedicle, is to tie it as close to the cyst as possible, bring the ligature out at the wound, and then with a strong harelip needle transfix the pedicle, along with both sides of the wound, just below the ligature. When the pedicle is excessively broad and stout, it should be transfixed by strong needles and double threads in various places, and thus tied in several portions. Absence of the pedicle greatly adds to the danger in any given case. Various plans have been tried, as cutting the attachment through slowly by the écraseur, ligature of each vessel separately, so many as twelve being sometimes required, and cauterising the stump. The latter, as used by Mr. Baker Brown, has met with a large measure of success, and is much used now.[142] Dr. Keith for a time operated with antiseptic precautions, but has now (1883) entirely given up the use of the spray, which he believes has especial dangers in abdominal surgery. OPERATION FOR STRANGULATED INGUINAL HERNIA.--The great rule to be remembered with regard to this, as well as all other operations for hernia, is, that the earlier it is performed the better chance the patient has. Once a fair trial has been given to the taxis, aided by proper position of the patient, the warm bath, and specially chloroform, the operation should be performed. The patient should be placed on his back with his shoulders elevated, and the knee of the affected side slightly bent. The groin should then be shaved, and the shape and size of the tumour, with the position of the inguinal canal, carefully studied. The surgeon should then lift up a fold of skin and cellular tissue, in a direction at right angles to the long axis of the tumour, and holding one side of this raised fold in his own left hand, commit the other to an assistant. He then transfixes this fold with a sharp straight bistoury, with its back towards the sac, and cuts outwards, thus at once making an incision along the axis of the hernia without any risk of wounding the sac or bowel. Any vessel that bleeds may now be tied. This incision will be found sufficiently large for most cases; if not, however, it can easily be prolonged either upwards or downwards. The surgeon must now devote his attention to exposing the neck of the sac, and in so doing, defining the external inguinal ring. The safest method of doing so is carefully to pinch up, with dissecting forceps, layer after layer of connective tissue, dividing each separately by the knife held with its flat side, not its edge, on the sac, and then by means of the finger or forceps raising each layer in succession and dividing it to the full extent of the external incision. It is not always an easy matter to recognise the sac, especially as the number of layers above it, which are described in the anatomical text-books, are often not at all distinct.