C L Pasricha1, A J H deMonte2, K Banerjee3, S Lal4. 1. CAPTAIN, I.M.S. Professor of Bacteriology and Pathology (An enquiry at the School of Tropical Medicine, Calcutta, financed by the Indian Research Fund Association). 2. I.M.D. Officer-in-Charge, Bowel Diseases Research Department (An enquiry at the School of Tropical Medicine, Calcutta, financed by the Indian Research Fund Association). 3. Assistant Professor of Pathology (An enquiry at the School of Tropical Medicine, Calcutta, financed by the Indian Research Fund Association). 4. Epidemic Dropsy Research Worker under the Research Fund Association (An enquiry at the School of Tropical Medicine, Calcutta, financed by the Indian Research Fund Association).