PRESIDENT’S ADDRESS SECTION B. 
47 
adding to my collection of oils for research, I have endeavoured to call 
in the aid of distillers in different parts of the country, with the view 
to have the stills charged with one kind of leaves and no other, but 
the owners are often very suspicious, and their oils are not to be 
relied upon for research work. Amongst what I may call educated 
distillers, very few are willing to submit their oils to the research 
analyst. 
I have bought a large number of oils in open market, and have 
acquired other oils under special circumstances, but as regards the oils 
of many species, I find my only course is to distil them myself. The 
still is under construction in the Technical College, and 1 have made 
arrangements to send my own collector to collect leaves botanically 
true.' I thus begin the bed-rock, just as I have with gums, tans, and 
timbers. My only regret is that, from the nature of things, the 
research must be protracted. Meantime I have a good deal of material 
to work upon, more, in fact, than J can get through for a considerable 
period with the present demands on my time. In this connection I 
would point out that if country pharmaceutical chemists have neither 
the time nor the inclination for research work on eucalyptus oils, they 
could do yeoman service in the matter by supervising the distillation 
of eucalyptus oils true to name for research purposes. 
Eucalyptus globulus , Labill. — This is a Tasmanian and Victorian 
tree, which is practically unknown in the other colonies to the average 
citizen. It has been largely planted in other countries, and so often 
written about that many people, even in these colonies, think that 
there is but one Eucalyptus , and its name is globulus. In other words, 
that Eucalyptus and globulus are convertible terms. This accounts for 
the great preponderance of the literature of E. globulus. At the same 
time E. globulus is an oil which may readily be obtained in a state of 
purity, so that the researches of Schimmel, Wilkinson, and other 
modern workers referring to it may be relied upon. 
This oil is largely in favour in Europe. The Eucalyptus planta- 
tions of Algeria now yield a considerable quantity of oil, and there is 
a tendency to supplant the oil produced by the native country of the 
species. I observe that Schimmel and Co. guarantee 60 per cent, of 
cineol in their oil and absence of phellandrene, “ which latter con- 
stituent is present in Australian oil.”* 
Schimmel gives the percentage of yield of oil from raw materials 
from T6 to 3 per cent. In Gippsland the usual percentage is perhaps 
T25 to 15. The same firrnf also gives the sp. gr. at 15° C. at from 
*91 to *93. A complete analysis shows the presence of valeraldehyde, 
butvraldehyde, capronaldehyde, and pinene, in addition to cineol. 
Optical rotatioji -f- 1° to 4-20°. Wilkinson gives the sp. gr. from *89 
to *95. Usually it is well over *9, readily satisfying the requirements 
of the B.P. in this respect. 
Eucalyptus amygdalina , Labill. — This tree, which principally goes 
under the name of Peppermint of one sort or another, is found in 
Tasmania, Victoria, South Australia, and New South Wales, being 
more widely distributed in the last colony than it was supposed to be. 
It is not only very abundant, but it grows to a very large size, and its 
Bericht, Oct., 1893. 
f Bericht, Oct., 1893, p. 19. 
