1. GU'TT'MANN, L., and LIST, L. F. (1928), Z. Neur., 1z6, 504.
2. GUTTMANN, L. (1933), Z. Neur., 147, 291.
3. , J. Neural, and Ptychiat., 3, S97
4. Proceedings of the Royal Soctety of Medicine
5. RIEDER, A.,,AND NEUMANN, L. (1932), Klin. Wschr., II., SEDDON, Publisher