1. 1) Bloom, G. D., and Fredholm, B., and Haegermark, Ö.: Acta physiol. scand., 71, 270 (1967).
2. 2) Komoto, S.: Unpublished observation (1969).
3. 3) Komoto, S., and Yamasaki, H.: Folia pharmac. japon., 63, 146§ (1967).
4. 4) Diamant, B.: Int. Archs Allergy appl. Immun., 36, 3 (1969).
5. 5) Tasaki, I., Polley, E. H., and Orrego, F.: J. Neurophysiol., 17, 454 (1954).