1. Buck, J. B., Q. Rev. Biol., 13, 301 (1938).
2. Haneda, Y., in Luminescence of Biological Systems (edit. by Johnson, F. H.), 360 (Am. Assoc. Adv. Science, Washington, 1955).
3. Haneda, Y., Sci. Rep. Yokosuka City Mus., 12, 4 (1966).
4. Buck, J. B., and Buck, E., Nature, 211, 562 (1966).
5. Buck, J. B., and Buck, E., Science, N.Y., 159, 1319 (1968).