64 SOCIAL SCIENTIST criteria of grouping. The diagonal elements inTable I of the Rwci Pebt and Investment Survey {1975}, Vol I, clearly shows such an overlap. 22 Herring uses this familiar statistical method of measuring institutional priorities in the rural credit market. Sec Herring, op cit, p 142. 23 Rural Credit Follow-up Survey 1956-57, Bombay, Reserve Bank of India, 1960, pp 190, 203, 227, and Rural Credit Follow-up Survey, 1958-59, pp 70, 80. 24 Daniel and Alice Thorner, Land and Labour in India, Bombay, 1965, p 149, 25 Herring, op cit, p 131. 26 F Frankel, India's Green Revolution, Princcton, 1971, Chapter IV,