_Ball-and-Socket Wrist Joint for Amputation above the Elbow_ No. 331 represents wooden arm for amputation above the elbow, with ball-and-socket wrist joint. An explanation of the ball-and-socket wrist for amputation below the elbow is given on page 69 under No. 323. The joint is universal and admits of placing the hand in any position, as shown by dotted lines. This is kept in place by spring friction on the ball. The wrist cannot be made quite the natural shape—that we are able to produce without the ball-and-socket joint; but this must be, necessarily, round. This part, however, is usually covered with the cuff or sleeve and is not conspicuous. [Illustration: 327 328 329 330 331 332 333 334 335] No. 332 is a sectional view of the arm and hand. A forward impulse of the shoulder and stump causes traction of the cord, moving the geared segment wheels so as to raise the forearm to any degree of flexion, when it is retained in position by means of a latch passing through a spring post and locking automatically. The wearer is enabled to conveniently carry a coat, shawl, basket, etc., on the artificial arm. A pressure on the button underneath the arm releases the lock, and the forearm is again under control of the stump and shoulders. The spring in the hand is for keeping the thumb in position and is the same as we put in all hands with movable thumb. PRICE, NO. 331 With wood or rubber hand $70.00 _Combination Table Knife and Fork_ No. 333, page 72, represents one of these useful implements, designed and made expressly for those who have been deprived of the use of one hand, and no such person can afford to be without one for a day. The blade is thin steel, ground to a sharp edge and terminating in a fork. A rolling motion will cut the food, and a twist of the hand will bring the fork into position for use. No. 334 represents a leather sheath into which the knife can be inserted. PRICES, NOS. 333 AND 334 Redwood handle $0.60 Ebony handle .75 Bone handle 1.00 Ivory handle 3.00 Pearl handle 4.00 Sheath, extra .25 _Pocket Knife for One-armed Persons_ No. 335, page 72, represents a simple, serviceable knife that can be operated quickly and conveniently with one hand. A pull of the thumb opens the blade slot, the blade drops down and out and is securely locked; invert the knife, with the blade up, and a pull of the thumb allows it to drop back into the handle. PRICES, NO. 335 Five and one-half inches long when opened $0.50 Nine inches long when opened 1.00 SUNDRIES