Page 1. Tetrahedron, 1962. Vo!. 18. pp. 1029 to 1048. Pergamon Press Ltd. Printed in Northern Ireland THE STRUCTURE OF FUSIDIC ACID ... Sot. 876 (1955). I1 G. Ourisson and P. Crabbe: Les TriterpPnes Tktracycliques pp. 88 and 140-144. Hermann, Paris (1961). Page 6. ...