The history of the following case was forwarded to the Museum, with the specimens, since the close of the war, by the medical officer whose name is attached:

CASE 870.—Private John Churn, company D, 2d United States colored troops; admitted to Harewood hospital, Washington, D. C., January 11, 1866. Typhoid fever. Died, January 12th, at 6 P. M. Autopsy forty hours after death: A well-formed negro man, five feet six inches high; weight 130 pounds; slightly emaciated; a large triangular scar on the right thigh about an inch above the knee; rigor mortis well marked. The veins of the pia mater were finely congested; the pia mater readily separated from the convolutions of the brain; the substance of the brain was firm; the lining membrane of the lateral ventricles was opaque and appeared to be slightly softened; about two drachms of serum were found in each lateral ventricle; the fornix was slightly softened, the choroid plexus very pale; the pineal gland contained a small amount of calcareous matter; the cerebellum was large, its membranes finely congested; there was an accumulation of about three ounces of pinkish serum in the posterior fossæ of the cranium; weight of the brain was not obtained. At the base of the left lung there was a small amount of crude tubercle; the upper lobe was slightly congested, otherwise the lung was normal; the upper lobe and the posterior portion of the inferior lobe of the right lung were slightly congested; the middle lobe was apparently healthy; about three ounces of serum were found in each pleural cavity. The pericardial sac contained about two ounces of clear yellow serum. The heart was very large and flabby; it was dark colored and presented on its surface numerous dark spots, apparently ecchymoses; there were large white fibrinous clots in all the cavities of the heart, ramifying through the pulmonary artery, the aorta and their branches; the tricuspid and mitral valves were somewhat thickened, the aortic valves atheromatous, the columnæ carneæ; pale. The liver was large, of a dark bronze color, very firm, and slightly congested; the gall-bladder filled with bile. The spleen was normal in size and very firm, of a dark purple color externally, dark brown internally. The right kidney was very small and fatty; the left was larger than normal, being about three times the size of the right kidney; it was congested and very fatty. The ureters showed no abnormal condition. The omentum was firm, dark and congested; it was contracted into a band. The pancreas was large, very firm, and of a dark color. The stomach, near the cardiac orifice, was much congested; its mucous membrane slightly thickened. The mucous coat of the duodenum was thickened, its upper portion much discolored with bile; near the pylorus the solitary follicles were slightly enlarged. The mucous membrane of the jejunum was slightly thickened and congested. The ileum was covered with pseudomembrane, particularly its lower portion; in the upper portion Peyer's patches were slightly thickened, in the lower portion they presented a few points of commencing ulceration. The mucous membrane of the cæcum and colon was coated with pseudomembrane, greatly thickened, and presented a number of large but superficial ulcers. The urinary organs appeared healthy.—Hospital Steward Samuel S. Bond. [Nos. 698 and 699, Medical Section, Army Medical Museum, are from this case. No. 698 is a portion of the ileum near the ileo-cæcal valve, thickened and roughened by adherent pseudomembrane. No. 699 is a portion of the rectum much thickened; its mucous membrane presents large ulcers and patches of adherent pseudomembrane; between the large ulcers are numerous minute follicular ulcers. It will be observed that the case was really one of dysentery. ]