VII. On the effects produced on the circulation and respiration by gunshot injuries of the cerebral hemispheres

In consequence of the fact that the effects produced on the circulation and respiration by a bullet passing through the cerebral hemispheres are hut little understood, the authors instituted a series of pathological experiments on etherised dogs, and of physical experiments on various substances. The results obtained establish, beyond question, th at the primary cause of death under these circumstances is not, as is usually supposed, due to failure of the heart, but to arrest of the respiratory movements. Further, the authors have found, in confirmation of this, that death can be prevented by the employment of artificial respiration, except under certain circumstances detailed in the paper.