nvolution, the greater half of the sigmoid gyrus, the
posterior third of the lower and middle frontal convolutions, the base
and posterior end of the upper convolution, and the base of the
corresponding portion of the falciform lobe were involved. The sensory
and motor functions of the arm were retained in a relative degree.
There was power of simple movements, but complex movements were
awkward. The tactile localization was almost lost.

Morton mentions a patient of forty-seven, who was injured in a railroad
accident near Phoenixville, Pa.; there was a compound comminuted
fracture of the skull involving the left temporal, spheroid, and
superior maxillary bones. The side of the head and the ear were
considerably lacerated; several teeth were broken, and besides this
there was injury to the aura and cerebral substance. There was profound
coma for ten days and paralysis of the 1st, 2d, 3d, 4th, 6th, and 7th
cranial nerves, particularly affecting the left side of the face. There
was scarcely enough blood-supply left to the orbit to maintain life in
the globe. The man primarily recovered, but ninety-one days from the
injury he died of cerebral abscess.

There is the record of a curious brain-injury in a man of twenty-two,
who was struck on the skull by a circular saw. The saw cut directly
down into the brain, severing the superior longitudinal sinus, besides
tearing a branch of the meningeal artery. The wound was filled with
sawdust left by the saw while it was tearing through the parts. After
ordinary treatment the man recovered.

Bird reports a compound comminuted fracture of the left temporal
region, with loss of bone, together with six drams of brain-substance,
which, however, was followed by recovery. Tagert gives an instance of
compound depressed fracture of the skull, with loss of brain-substance,
in which recovery was effected without operative interference. Ballou,
Bartlett, Buckner, Capon, Carmichael, Corban, Maunder and many others,
cite instances of cranial fracture and loss of brain-substance, with
subsequent recovery. Halsted reports the history of a boy of seventeen,
who, while out fowling, had the breech-pin of a shot-gun blown out, the
sharp point striking the forehead in the frontal suture, crushing the
os frontis, destroying 1 3/4 inches of the longitudinal sinus, and
causing severe hemorrhage from both the longitudinal and frontal
sinuses. The pin was pulled out by the boy, who washed his own face,
an