1. SiddiquiJ.I.C.S., 1937,12, 705. Sharma and SiddiquiIbid., J.I.C.S., 1939,16, 1.
2. Bose and DuttIbid.,, 1940,17, 499.
3. Salooja, Sharma and SiddiquiJ.S.I.R., 1947,6B, 57.
4. Rao, Rao and SeshadriProc. Ind., Acad. Sci. A, 1948,28, 103.
5. Rao and SeshadriIbid.,, 1948,27, 375.