. A treatise on artificial limbs with rubber hands and feet ... arm is constructed withleather socket, both above and below the elbow. The forearm socketis capable of distension and contraction, by means of which thestump can be put in place, and the socket laced so tightly thatthe stump will have uniform bearings. The upper-arm piece isregulated by straps and buckles and held at the proper distance fromthe forearm part. It is made to compress the muscle by means of a A. A. MARKS, ARTIFICIAL LIMBS, NEW YORK CITY. 251 lacing-. The hand is attached permanently to the forearm, as thelength of the
. A treatise on artificial limbs with rubber hands and feet ... arm is constructed withleather socket, both above and below the elbow. The forearm socketis capable of distension and contraction, by means of which thestump can be put in place, and the socket laced so tightly thatthe stump will have uniform bearings. The upper-arm piece isregulated by straps and buckles and held at the proper distance fromthe forearm part. It is made to compress the muscle by means of a A. A. MARKS, ARTIFICIAL LIMBS, NEW YORK CITY. 251 lacing-. The hand is attached permanently to the forearm, as thelength of the stump prohibits the appropriation of room necessary forthe introduction of any of the forms of wrist mechanism. If, how-ever, the wearer is willing to have the artificial arm an inch longer thanthe natural one in order to remove the hand from the socket, hewill be so accommodated. The introduction of either the spindle, balland socket, or mortise and tennon connection requires about an inch ofspace, and this must come beyond the extremity of the stump. It is. No. 974. a great convenience to be able to slip the hand from the socket andplace a hook, knife, fork, or brush in its place. It is also a conveni-ence to have the artificial arm the same length as the natural one. Itremains for the wearer to decide which of the two conveniences he canbetter sacrifice. When the hand is permanently attached, the utilityof the member is not greatly abridged, as the socket placed in the palmof the hand is capable of holding any of the implements heretoforedescribed. If the wearer objects to leather he can have the socket made of woodor aluminum, in either case it will be better to make the socket tubularand use side straps, for supports, extending above the elbow. 252 A. A. MARKS, ARTIFICIAL LIMBS, NEW YORK CITY. SECOND No. 975 represents a wrist-joint amputation in which thestyloid processes were permitted to remain. Cut No. 976 repre-
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