Preliminary tests by Simes et al. (1959) suggested that triterpenoids were present in the bark, leaves, and wood. In the present work, the wood has been systematically extracted. From the light petroleum extract a neutral fraction was obtained which after saponification yielded, in addition to the widespread sitosterol, cycloeucalenol, previously reported by Cox, King, and King (1956) from the wood of Eucalyptus microcorys, and 24-methylenecycloartanol recently obtained by Ohta and Shimizu (1958) from a quite unrelated source, namely Japanese rice bran oil. The ether extract of the wood yielded large quantities (3.5%) of arjunolic acid, first isolated by King, King, and Ross (1954) from the wood of Terminalia species ; the acetone and methanol extracts gave further small quantities of the same substance.