The following case of concussion of the brain furnishes an interesting clinical history and instructive operative findings:
—M., male, aged 25, jockey by occupation, fell from his horse in a hurdle race and it is supposed was kicked in the head. Admitted to hospital March 7.
Examination (ambulance notes).
—When first seen the patient was unconscious, respiration stertorous, pulse full, slow and bounding; reacted to painful stimuli on either side; pupils were moderately dilated and unequal; right corneal reflex slower than left. The face was congested and there was a lacerated wound of the scalp over the right parietal bone. On the way to the hospital the patient's breathing ceased to be stertorous and he reached up with the left hand and unbuttoned undershirt. On being pinched, movements of the face were apparently equal. On arrival at the hospital he reacted slightly to painful stimuli in the right leg,