1. Björck, G., S. Dyrendahl and S.-E. Olsson: Yet. Rec. 69, 87 (1957).
2. Hansson, C.-H., and N. Obel: Nord. Vet.-Med. 10, 457 (1958).
3. McGrath, J. T.: Neurologic examination of the Dog. Philadelphia 1956.
4. Mollaret, P., V. Robin et J. Bertrand: Rev. neurol. 40, 172 (1933).
5. Sherrington, C. S., and E. E. Laslett: J. Physiol. (Lond.) 29, 188 (1903).