“…In cases in which paralysis has been brief there might be no defmonstrable change in the nerves (Loffler, 1919;Rothman, 1926;Borst and Konigdorffer, 1929), otherwise a patchy demyelination most marked in the nerves of the lower extremities was usual (Mason et al, 1933). Demyelination in the spinal cord has been described by Courcoux only as a marginal demyelination of the antero-lateral tract of the lumbar cord.…”