At a meeting held June 4, 1885, I had the pleasure of reading before this Society a paper on the "Value of Biniodide of Mercury as an Antiseptic in Obstetrics." It was with hesitancy that I brought forward the claims of a new agent whose properties were at that time comparatively unknown. My only knowledge of its effects was that which I had derived from reading the experiments of Dr. Miquel, of France, and from my experience in three cases. Tonight I again bring it to your notice, not as an unknown and untried antiseptic, but as one which has proved itself far superior to any of this class of preparation which I have thus far used in obstetric practice. Since writing my last paper I have learned that the biniodide of mercury has been used for the past year in preference to all other antiseptics at the Lariboisiere Maternite,