1. Banerjee, S., Indian J. Med. Res., in the press.
2. Banerjee, S., Indian Med. Gaz., in the press.
3. Best, C. H., Haist, R. E., and Ridout, J. H., J. Physiol., 97, 137 (1939).
4. Marks, C. H., Quarterly Bulletin of the Health Organization, League of Nations, Geneva, Special Number, November 1936.