Case was forwarded, with specimens, to the Army Medical Museum from the JUDICIARY SQUARE HOSPITAL, Washington, D. C., Surgeon Charles Page, U. S. A., in charge.

CASE 261.—Private Andrew A. Edgarton, 2d company Vermont Independent Sharpshooters; admitted November 18, 1862. Chronic diarrhœa. Died, December 25th. Autopsy: Besides extensive ulceration of the colon, both kidneys were full of cysts; when fresh the right was weighed twenty-four ounces, the left fourteen ounces. No attention had been drawn during life to the condition of these organs.—Surgeon Jos. S. Hildreth, U. S. V. [Nos. 27 to 29, Medical Section, Army Medical Museum, are from this case. No. 27 is the anterior half, No. 28 the posterior half, of the left kidney. They contain innumerable cysts, which vary from the size of a pin-head to that of a chestnut. No. 29 is the right kidney laid open; it is in the same condition as the left, except that some of the cysts are larger, the largest being the size of an English walnut.]