28 : T. W. E. DAVID. 
they can be assured of continuous supplies of the same kind, a 
' matter which must be settled primarily on botanical evidence. 
The experimental plant for the distillation of Eucalyptus oil is 
now in full working order. In the Chemical Laboratory Mr. 
Maiden and Mr. Smith have been working at a further classifica- 
tion of the Zucalyptus exudations known as kinos. The discovery 
of two new organic substances in those kinos belonging to the 
turbid group, viz., Eudesmin (C,,H;,0,) and Aromadendrin, 
has advanced our knowledge considerably, and has opened out a 
way for their scientific classification and accurate arrangement. 
Whether these new bodies are of therapeutic value has not yet 
been investigated. The discovery of Aluminium Succinate as 
an exudation of Grevillea robusta, R. Br., is of some importance, 
as both the acid and the base are of rare occurrence under these 
conditions, and a natural salt of this character has not previously 
been discovered. Part I. of original investigations on the un- 
described gums, resins, gum-resins and kinos of Australia was also 
submitted to this Society during the year, and is published in its 
proceedings, as is also the other chemical research work mentioned 
above. 
Mr. W. W. Froggatt, has arranged and set out a collection of 
white-ants ( Termites ), together with timbers attacked by them, and 
enlarged drawings showing the different forms of the workers, 
soldiers, queen and winged males and females. Several new type 
specimens have been added to the Australian collection, which 
now fills five wall cases. 
University Laboratories—Anatomy.—Professor Wilson and 
Mr. J. P. Hill have for the past eighteen months been engaged 
upon a research into the development of the teeth in marsupials, 
particularly in the genus Perameles. The results are nearly ready 
for publication. They believe that their conclusions will be found 
to be of interest and importance, more especially in regard to the 
problem of tooth succession, and diphyodontism not only in mar- 
supials but in mammalia generally. Their conclusions differ 
materially from those usually entertained at the present time. 
