According to F. B. Power and F. Tutin1), the crushed fruits of Pittosporum undulatum, Vent, (family Pittosporaceae), which is indigenous to south-eastern Australia, yields 0,44 p. c. of oil which upon prolonged standing undergoes apparent changes: dl5o0,8615; aD + 74°4'. Upon fractional distillation 4 p. c. of d-a-pinene (nitrosochloride; m. p. of nitrolbenzylamine 123°) passed over below 165°. Between 173 and 180°, 75 p. c. of limonene (m. p. of tetrabromide 104°) passed over, and between 200 and 225o a substance, presumably an alcohol, which upon oxidation yielded a ketone C9H140 that had the odor of cumarin. Finally, between 263 and 274° an optically inactive sesquiterpene C16H24 (d15o 0,910; nD20o1,5030) passed over. Not a single crystalline derivative was obtainable, neither could it be identified with any of the known sesquiterpenes. Its molecular refraction indicated the presence of two rings and two double bonds. In addition, the presence of traces of palmitic and salicylic acids was ascertained, also of a phenol that had the odor of eugenol. Traces of esters of valeric, formic and other acids were also found present. The oil was insoluble in 10 vol. of 70 p. c. alcohol.