excelled in irregular operations in which no well established mode of procedure could be followed, but he had to depend on the decision of the moment as to the particular case. He knew exactly what he meant to do and how to do it, and this without delay or hesitation. Thus he won the reputation of being the most dexterous operator of his day. In addition to his “Surgery” Liston published numerous valuable papers on amputation, difficult cases of aneurism, tracheotomy, lithotomy, and lithotrity. He left his impress on a very large number of operations, either devising new methods of meeting old difficulties, or improving the accepted modes of dealing with them. He invented an improved shoe for the treatment of club-foot, and was great at reducing dislocations. He once succeeded in reducing a dislocated hip-joint after the dislocation had continued no less than two years. He introduced the method of reducing dislocated phalanges, especially of the thumb, by passing the ring of a door-key over the part and hitching it against the projecting end of the bone, so that extension and pressure could be brought to bear simultaneously. After dislocation of the thigh backwards, he several times took advantage of the immediate powerlessness of the muscles from shock, and reduced the limb on the spot without the use of pulleys or even without the aid of an assistant. He invented or modified splints for broken limbs. His methods of performing amputations by flaps became very largely adopted. He had great success in what are known as plastic operations, such as restoring a nose by taking a flap from the upper lip. His name is scarcely more associated with amputations, however, than with lithotomy and lithotrity, to which he devoted great attention. Many of his lectures on those subjects were published in the _Lancet_ and were widely read. Much importance has been assigned to Liston’s personal strength as constituting a large element in his operative successes. His hand and arm, it was said, might have furnished models for a Hercules, and their power was not unfrequently shown in operations requiring great muscular exertion. But he was equally successful in those in which the most delicate manipulation was demanded. His decision and force of character were equal to the accurate control over his powerful yet adaptable muscles. He would amputate the thigh single-handed, compress the artery with the left hand, using no tourniquet, and do all the cutting and sawing with the right, with only the aid of a house-surgeon to hold the limb and tie the ligatures on the arteries. He did not need time for reflection; his actions were prompted by a kind of intuition akin to genius; he seemed to comprehend at a glance the requirements of any particular case. Yet he never gave up his habit of studying anatomy, spending as many hours as possible in actual dissection.