n in these injuries. I saw a number of cases in which the
patients estimated the range at which they received their wounds as from
30 to 50 yards, and although some of the wounds were of a severe type,
the increased gravity depended rather on the injury to the chest-wall
than to that of the lung. If the bullet passed by the intercostal space,
avoiding the rib, I very much doubt if the relative velocity was of any
importance, further than from the fact that a sufficiently low degree to
allow of lodgment of the bullet was distinctly unfavourable.

In view of the general lack of significance in these injuries it was
interesting to note how very definite was the ill effect of early
transport on the after course. This depended on the frequent development
of parietal haemothorax in patients who were not kept absolutely at rest.

The tracks produced in the lungs by the bullets were very minute, and in
the few cases in which opportunity arose for their examination _post
mortem_ some little time after the infliction of the wound, there was
great difficulty in localising them. The slight damage incurred by the
pulmonary tissue is due to its elasticity and non-resistent character.

Pulmonary haemothorax was distinctly rare. Reasoning from the analogous
wounds of the liver, tracks scoring the surface of these organs might be
much more to be feared than clean perforations. The elasticity of the
lung tissue, however, must make such lesions rare. In point of fact,
there is no reason why a perforation by a bullet of small calibre should
be much more feared than a puncture from an exploring trocar, and the
danger of the two wounds is probably very nearly the same.

The only points of importance as to the particular region of the lung
traversed were the distance from the periphery as affecting the probable
size of the vessels injured, and perhaps the implication of the base or
apex of the organ respectively. I am under the impression that wounds in
the apical region were somewhat more liable to be followed by the
development of pneumothorax, and possibly haemothorax, while wounds at
the base gained their chief importance from the frequency of concurrent
injury to the abdominal viscera. I had no experience of the immediate
results of wound of the great vessels at the root of the lung, but
assume that they led to speedy death.

_Symptoms of wound of the lung._--I shall describe the whole complex
usually observed, although it is obvious