If the operator is anxious to arrest menstruation, he must be certain to remove all ovarian tissue and the Fallopian tubes at the uterine cornua. Sometimes, after an adherent ovary has been enucleated, part of the ovarian stroma remains glued to the pelvic wall, the posterior face of the broad ligament, or some other structure. These portions of ovary should be carefully picked off with the forceps. If the operator doubts the complete removal of all ovarian tissue, he should make a note to this effect in the history of the case. Were this always done, the existence of a supernumerary ovary would not be so often assumed. The directions that have been given here apply to the removal of tubal tumors and small cystic and solid tumors of the ovary. When the ovary is removed there is but little, if any, advantage in leaving the corresponding Fallopian tube in case the tube on the opposite side is healthy. If the patient is anxious for children, the operator should remember that conception is possible with one tube and one ovary, though they be on opposite sides. If an ovarian tumor is removed independently of the corresponding Fallopian tube, the pedicle of the ovary should be transfixed and ligatured in two or more masses. =Removal of an Ovarian Cyst.=--The removal of a large ovarian cyst may be facilitated by preliminary tapping as soon as the peritoneum is opened, and withdrawal of the fluid contents. As a general rule, this procedure is advisable if the cyst is too large to be removed through a 3- or 4-inch incision. If, however, the operator should suspect the contents of the cyst to be septic, it is safest to enlarge the incision and to remove the tumor intact, thus avoiding infection of the peritoneum. This advice is especially applicable to dermoid cysts. The contents of such cysts are very often septic. They are thick, and contain a large amount of solid material which passes with difficulty through the trocar. The walls of the cyst are friable and easily torn, so that the puncture-wound of the trocar becomes enlarged and the cyst-contents escape around it; and, finally, the contents of a dermoid are very difficult to remove from the peritoneum. The dermoid character of a cyst may be suspected from the dull appearance of the walls and the putty-like feeling upon palpation. They are usually of small size, and may be removed bodily through an incision of moderate extent. Every tumor should be carefully examined before the trocar is plunged into it. The operator should make certain by palpation that the tumor is cystic. The trocar has been thrust into the pregnant uterus, and frequently into a fibroid tumor. In the case of a fibroid profuse hemorrhage may occur from such an accident. The hemorrhage may usually be controlled by forcing a small sponge or gauze pack into the puncture wound. Before tapping the cyst the operator should pass his hand around it and determine the position and character of adhesions.