-Cornes de la Peau-Production Cornée. BY WM. H. PANCOAST, M.D., Demonstrator of Anatomy, Jefferson Medical College, Surgeon to the Philadelphia Hospital, and Surgeon to Charity Hospital, etc. The accompanying photograph is that of Capt. Levi Becket, a resident of Atlantic City, New Jersey. The horny tumors were photographed on his face by simply tying them on in the position from which they fell, he having come to me with them in his hand, When he visited me at my office, on the 27th of last June, his face was in a horrible condition. The whole skin of the nose and cheeks, and a portion of that upon the forehead and lips, was covered with horny sores,-- the one involving the left cheek, from which the large horn had fallen, being offensive and heaped up with horny scabs. The patient states that he is 78 years of age, has lived most of his life in the open air as a fisherman and gunner, his health generally good, with the exception of some three or four suc- cessive and severe attacks of erysipelas, produced, as he pre- sumes, from exposure to the sun and wind. The last of these