_Examination._--The left lung had contracted firm adhesions, particularly above and behind. It was torn in attempting to remove it, and there issued from the middle and posterior part a large quantity of dark-coloured matter, similar to what had been expectorated. An incision was made along the back part of the lung, and laid open a large cavity, occupying all the extent of the pulmonary organ, and still in part filled with the same kind of dark putrid matter. On washing out the cavity it was perceived that it was lined with a smooth and white membrane, to which were still adherent, at some points, dark filamentous shreds; these were removed by the least touch, and left the surface smooth beneath. The boundary was formed by a false membrane, about a line in thickness, which separated the mortified from the sound parts. The lung was reduced to a kind of bag, the parietes of which were on an average about an inch thick. In the upper part of the lung, which was hepatized, an incision discovered a number of smaller tubercles, which in the centre were in a crude state; and at one point several had suppurated, forming a cavity large enough to contain a nut. [The Editors of the _Journal Hebdomadaire_, from which these cases are abridged, add, in a note, that although the fœtor of the expectoration, such as above described, is usually dependent on gangrene of the lungs, yet that this is not invariably the case. In confirmation of this assertion they refer to three instances of fœtid expectoration--in the first, the patient is still alive; in the second, there was chronic bronchitis, with considerable dilatation of numerous bronchi; and in the third, bronchitis with some appearances of chronic pneumonia. Laënnec gives a case of dilatation of the bronchi, with remarkably fœtid expectoration. The argument derived from the first patient having survived we consider to be altogether erroneous, as patients more frequently recover from this than other forms of purulent expectoration.--ED.] PROCEEDINGS OF SOCIETIES. WESTMINSTER MEDICAL SOCIETY. December 6th, 1828. JAMES ARNOTT, ESQ. IN THE CHAIR. Pursuant to announcement, Mr. MacKelcan introduced the subject of concussion of the brain. After remarking on the several symptoms, and mentioning the other affections of the head with which concussion is apt to be confounded, Mr. M. directed the attention of the society more particularly to the treatment in the stage of collapse, adopted by Professor Andrini of Florence. Dr. Duffin stated, that having been in Florence, he had witnessed the employment of three, four, or six ounce bleedings employed by the Professor in the stage above-mentioned. The principle on which they were used was that of their acting as a stimulus to the brain; and really the plan was not apparently attended with any bad effects. When re-action has ensued, the practice of M. Andrini is the same as that resorted to in this country.