468 H, G. SMITH. 
over a year previously had fortunately been preserved— 
represented 18 per cent. of the crude oil distilling below 
173° C. It contained, however, some free acid at this time, 
as a portion of the ester had hydrolised. The saponification 
number for the ester and free acid in this fraction was 45°8. 
This result also shows the ester in the oil of EH. Perriniana 
of Tasmania to be a low boiling one, and that the greater 
portion distilled over in the first fraction. 
These chemical results support the botanical evidence 
that the trees growing both in Tasmania and on the main- 
land of Australia are the same species. 
