_Metrophlebitis._ Inflammation of the venous channels and lymphatics of the uterus, is a very frequent cause of the fatal termination of cases of puerperal fever. Tonnellé found it present in one hundred and thirty-two cases out of two hundred and twenty-two. Besides the appearance of the vessels common to ordinary phlebitis, we find the uterus studded with small abscesses which may be traced to the vessels. The lymphatics may be primarily and coincidently affected, or they may be attacked separately and secondarily; the former is the more frequent. They present the same varicose appearance as the veins, and are thickened and distended with the purulent or sanious products of the inflammation. _Puerperal Peritonitis_, is the lesion most commonly associated with puerperal fever. It may be confined to the surface of the organ, particularly to the part surrounding the neck, or may involve more or less entirely the whole sac. In the sthenic forms, the appearances presented, resemble those of ordinary peritonitis. In the low typhoid forms, there is a peculiar absence of congestion and redness. The ordinary character of the exudation, is a copious effusion of an aplastic character, of a dirty-yellow, greenish, or brownish hue, in which flocculent particles of lymph are found floating, while but small patches of a thin, non-coherent exudation, are observed in the peritoneal sac. The smell of the fluid is distinctive, differing from anything found in the human body in health or disease, and after having been once noticed, cannot fail to be recognized. Extra-uterine Pregnancy. This species of gestation may be considered under the following varieties, receiving their names according to the part of the passage where the ovule becomes fixed: 1. Abdominal Pregnancy. 2. Tubo-abdominal Pregnancy. 3. Tubal Pregnancy. 4. Interstitial Tubo-uterine Pregnancy. 5. Utero-tubal Pregnancy. 1. _Abdominal Pregnancy._ This includes all cases in which the fecundated ovule fails to engage in the tube. Three varieties may occur. The ovule may remain in the ruptured ovisac and there be developed, giving rise to an _internal ovarian_ pregnancy. Should it after escaping from the Graafian vesicle adhere to the surface of the ovary, we have an _external ovarian_ pregnancy. Finally, if the ovule, escaping from the ovary, fall into the peritoneal cavity, and there undergo development, a _peritoneal_ pregnancy results. In the last class, the points to which the ovule may attach itself are exceedingly numerous. The placenta has been found attached to the peritoneum covering the right or left iliac fossa, sometimes to a part of the small or large intestine, and sometimes to the anterior wall of the abdomen.