otruded and was strangulated by the edges of the
thoracic wound, yet the patient made a good recovery. Fabricius
Hildanus and Ruysch record instances of recovery in which large pieces
of lung have been cut off; and it is said that with General Wolfe at
Quebec there was another officer who was shot through the thorax and
who recovered after the removal of a portion of the lung. In a letter
to one of his medical friends Roscius says that he succeeded in cutting
off part of a protruding, livid, and gangrenous lung, after a
penetrating wound of the chest, with a successful result. Hale reports
a case of a penetrating stab-wound in which a piece of lung was removed
from a man of twenty-five.

Tait claims that surgical treatment, as exemplified by Biondi's
experiment in removing portions of lung from animals, such as dogs,
sheep, cats, etc., is not practical; he adds that his deductions are
misleading, as the operation was done on healthy tissue and in deep and
narrow-chested animals. Excision of diseased portions of the lung has
been practised by Kronlein (three cases), Ruggi of Bologna (two cases),
Block, Milton, Weinlechner; one of Kronlein's patients recovered and
Milton's survived four months, but the others promptly succumbed after
the operation. Tuffier is quoted as showing a patient, aged
twenty-nine, upon whom, for beginning tuberculosis, he had performed
pneumonectomy four years before. At the operation he had removed the
diseased area at the apex of the right lung, together with sound tissue
for two cm. in every direction. Tuffier stated that the result of his
operation had been perfectly successful and the patient had shown no
suspicious symptoms since.

Rupture of the Lung Without Fracture.--It is quite possible for the
lung to be ruptured by external violence without fracture of the ribs;
there are several such cases on record. The mechanism of this rare and
fatal form of injury has been very aptly described by Gosselin as due
to a sudden pressure exerted on the thoracic wall at the moment of full
inspiration, there being a spasm of the glottis or obstruction of the
larynx, in consequence of which the lung bursts. An extravasation of
air occurs, resulting in the development of emphysema, pneumothorax,
etc. Subsequently pleurisy, pneumonia, or even pus in the pleural
cavity often result. Hemoptysis is a possible, but not a marked
symptom. The mechanism is identical with that of the bursting of an
inflated pa