nerve was found to be thickened and enlarged for about 1-1/2
inch of its length; the ulnar was not completely freed, but was
found to be continuous and indurated; the musculo-spiral was
also intact, but at its entrance into the humeral groove a mass
of callus was felt. A sclerosed and thickened portion of the
median nerve 3-1/2 inches in length was resected, also 1 inch
of sclerosed ulnar nerve, and both were sutured. The
musculo-spiral nerve was left for future exploration. A small
traumatic aneurism was found on the brachial artery, and the
vessel was ligatured above it.

Ten months later no improvement in the median or ulnar nerves.
Electrical reaction present in musculo-spiral group of
muscles.

(127) _Musculo-spiral._--Transverse wound through arm posterior
to humerus. Slight suppuration. Triceps weakened only, complete
paralysis of radial extensors and posterior interosseous group.
Radial sensation lowered only.

(128) _Musculo-spiral._--_Entry_, 2 inches above and 1/2 an
inch behind the external humeral condyle; _exit_, at the inner
edge of the biceps, 1/2 an inch lower in the arm than the
entry. It is doubtful whether the paralysis was noted at first,
but a few days later complete posterior interosseous paralysis
and lowered radial sensation were remarked. No change except a
deepening of the anaesthesia, and the development of formication
on manipulation of the wound occurred, and at the end of three
weeks the nerve was exposed (Mr. Watson), and it was found that
a notch had been cut in its outer border, which had opened out
into a V shape. The margins of this notch were refreshed and
the gap closed. Ten days later radial sensation was fairly
good, but the motor symptoms remained unchanged. Nine months
later steady but very slow improvement was reported.

(129) _Ulnar and musculo-cutaneous nerves._--_Entry_, back of
forearm; the bullet passed between the bones and was retained
at the posterior aspect of the arm. Three weeks later the hand
was glossy and stiff, the fingers extended and adducted, the
thumb was held stiffly in the palm with no power of extension.
The forearm was held semiprone, and the elbow flexed by a rigid
biceps. Six months later the same position was maintained, but
the contracture disappeared under