Sir Walter Ogilvie, Bart. of Dundee, an officer in the regiment of Scotch Greys, at the age of twenty-three, active and healthy, was crossing the ferry at Leith, when he received a blow on his back, from the boom of the vessel, which paralized the pelvis and lower extremities. During two months he was obliged to have his water drawn off; for fourteen months he remained in bed, or in a horizontal posture, and though he then recovered the use of the bladder, and of his limbs, sufficiently to walk across the room with the help of crutches, and also to ride, when placed on an easy low horse, his health continued many years in a weak and precarious state, while the limbs acquired little additional strength or powers. About twenty years after the accident, perceiving symptoms of stone in the bladder, he was examined by Mr. Benjam in Bell at Edinburgh, and a stone was felt, which was judged to have attained a considerable size; the operation of extraction was then recommended, but was postponed from time to time, though his health declined, and the irritation and pains in the bladder gradually increased.