CASE 19.—Private Luman A. Johnson, Co. H, 4th N. Y. Heavy Art'y; age 22; was admitted from the Army of the Potomac Nov. 7, 1864, with typhoid pneumonia, and died December 8. Post-mortem examination: Body much emaciated. The left pleural sac contained a few ounces of bloody serum, the membrane being firm, opaque and thickened by deposits of lymph; the right cavity was obliterated by firm fibrinous adhesions; both lungs were studded with tubercles. The opposed surfaces of the pericardium were so firmly adherent that it was almost impossible to separate them; the external surface of the heart was studded with minute granulations resembling tubercle, which did not penetrate the cardiac substance, but appeared to be in or immediately beneath the pericardium. The spleen, ten ounces, contained minute yellowish-white tubercle-like bodies. The liver, forty-eight ounces, was very light in color; the kidneys appeared to be normal. The mucous membrane of the intestines was much congested.—Act. Ass't Surgeon H. M. Dean, Lincoln Hospital, Washington, D. C.