late
VII.). The patient was wounded at Belmont in November 1899, but he was
able to row at the end of the summer of 1900, although very prolonged
suppuration occurred, and the elbow movements became practically normal.
Plate IX. illustrates a transverse track, the bullet having undergone
considerable injury during its passage through the bone, as evidenced by
the presence of fragments both of mantle and lead in the limb. This
might be called an example of transverse fracture, and illustrates the
nearest approach to one seen when the bone is struck fairly plumb.

[Illustration: PLATE IV.

Skiagram by H. CATLING

Engraved and Printed by Bale and Danielsson, Ltd.

(24) COMMINUTED FRACTURE OF THE HUMERUS

Range about '300 yards.'

The wound track took a directly antero-posterior course. Impact
rectangular. The musculo-spiral nerve was completely divided.

The plate affords a good example of the so-called 'butterfly' fracture.
Two long doubly wedge-shaped lateral fragments, and pointed extremities
to both main fragments, are shown.

The fracture healed well, with the deposition of a large mass of
provisional callus. The musculo-spiral nerve was united by suture some
three months later.]

Plate VIII. exhibits an oblique fracture of the lower part of the shaft
produced by a bullet passing at a low rate of velocity. It does not
widely differ from a perforation, and the illustration possesses some
further interest as showing the deviation of a bullet likely to occur
when a bone lies in its course. Although the velocity with which this
bullet was travelling must have been very low, when the bone had been
traversed the deviation in its course was slight. A few bony fragments
from the compact tissue of the posterior surface of the humerus have
been carried into the distal portion of the track.

Fractures of the various prominences of the lower articular extremity
were not uncommon, but deviated little from the types with which we are
familiar in civil practice; the after results were good, both as to
union and movement of the elbow.

Explosive wounds of the soft parts were not infrequent in the arm, and
fig. 48, p. 158, exhibits an extreme example. The humerus in respect of
depth of covering, however, comes between the femur and the bones of the
leg and forearm; hence such injuries were not so easily produced as in
the latter segments of the limbs.

In connection with the subject of fractures of this bone, one word m