Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Abstracted from the thesis of TKDG submitted for the D.Phil. (Sc.) degree of the University of Calcutta, April 1967. ... Presented at the joint annual convention of the Chemical Research Committee of the Council of Scientific and Industrial Research, India and the Society of Biological ...