The late war provided an inexhaustible fund of experience in neuropathology. The study of the material afforded by the cases of injuries to the peripheral nerves has been especially fruitful. The research in the neurologic departments of the various armies has demonstrated that anatomic and physiologic ideas current prior to the war were inadequate to explain many of the phenomena associated with injuries to the peripheral nerves.
Compared with the neurologists of the other armies, those of the American army were afforded but a meager opportunity for the study of neuropathology. The few months in which we were actively engaged in warfare, with the necessity for rapid and efficient medical function, did not permit the fullest organization of neurologic units for consistent research of injuries to the nervous system in the cases observed in France. On their return to the United States, the patients with peripheral nerve injuries were assembled