of a case, which has since become classic, that he observed in St.
Thomas' Hospital in London, in 1837. A miller had carelessly thrown a
slip-knot of rope about his wrist, which became caught in a revolving
cog, drawing him from the ground and violently throwing his body
against a beam. The force exerted by the cog drawing on the rope was
sufficient to avulse his whole arm and shoulder-blade. There was
comparatively little hemorrhage and the man was insensible to pain;
being so dazed and surprised he really was unconscious of the nature of
his injury until he saw his arm in the wheel.

According to Billroth the avulsion of an arm is usually followed by
fatal shock. Fischer, however, relates the case of a lion-tamer whose
whole left arm was torn from the shoulder by a lion; the loss of blood
being very slight and the patient so little affected by shock that he
was able to walk to the hospital.

Mussey describes a boy of sixteen who had his left arm and
shoulder-blade completely torn from his body by machinery. The patient
became so involved in the bands that his body was securely fastened to
a drum, while his legs hung dangling. In this position he made about 15
revolutions around the drum before the motion of the machinery could be
effectually stopped by cutting off the water to the great wheel. When
he was disentangled from the bands and taken down from the drum a huge
wound was seen at the shoulder, but there was not more than a pint of
blood lost. The collar-bone projected from the wound about half an
inch, and hanging from the wound were two large nerves (probably the
median and ulnar) more than 20 inches long. He was able to stand on
his feet and actually walked a few steps; as his frock was opened, his
arm, with a clot of blood, dropped to the floor. This boy made an
excellent recovery. The space between the plastered ceiling and the
drum in which the revolutions of the body had taken place was scarcely
7 1/2 inches wide. Horsbeck's case was of a negro of thirty-five who,
while pounding resin on a 12-inch leather band, had his hand caught
between the wheel and band. His hand, forearm, arm, etc., were rapidly
drawn in, and he was carried around until his shoulder came to a large
beam, where the body was stopped by resistance against the beam, fell
to the floor, and the arm and scapula were completely avulsed and
carried on beyond the beam. In this case, also, the man experienced
little pain, and there was compa