1. Nicholls, J. G., and Quilliam, J. P., Brit. J. Pharmacol., 11, 151 (1956). Quilliam, J. P., Med. Press, 238, 121 (1957); and Brit. J. Pharmacol., 14, 277 (1959). Marley, E., ibid., 14, 284 (1959).
2. Marley, E., and Paton, W. D. M., Brit. J. Pharmacol., 14, 303 (1959).
3. Feldberg, W., in “Metabolism of the Nervous System”, 493, edit. by Richter, D. (London and New York, Pergamon Press, 1957).
4. Smallman, B. N., and Fisher, R. W., Can. J. Biochem. and Physiol., 36, 575 (1958).