1. Cannon, W. B. (1932). The Wisdom of the Body. Kegan Paul, London.
2. Carlsson, A., B. Falck, and N.-Å. Hillarp (1962). Cellular localization of brain monoamines. Acta Physiol. Scand.
56 (Suppl. 196): 1.
3. Elliott, T. R. (1912). The control of the suprarenal glands by the splanchnic nerves. J. Physiol.
44: 374.
4. Euler, U. S. v. (1946). A specific sympathomimetic ergone in adrenergic nerve fibres (sympathin) and its relations to adrenaline and noradrenaline. Acta Physiol. Scand.
12: 73.
5. Feldberg, W., and Vogt, M. (1948). Acetylcholine synthesis in different regions of the central nervous system. J. Physiol.
107: 372.