7 
Here it is remarkable to note that Professor 
Schulz himself took the oil, purified and 
oxygenized by his method, as much as two 
scruples in a single dose without inconvenience ; 
and even when increasing the dose to three 
scruples (of course diluted) he merely felt de- 
pression, but nothing abnormal. 
Nevertheless, it should be borne in mind that 
the oil used by Dr, Schulz becomes much 
changed from the ordinary oil in commerce ; there- 
fore the latter would not be given in such large 
doses with impunity. Indeed, I found that even 
a few drops taken as a dose produce marked 
effect. Moreover, he observed, after taking the 
refined and oxygenated oil, that the urine, particu- 
larly after warming, assumed the odour of violets, 
as in sequence of the internal use of oil of 
turpentine. But neither Dr. Von Schleinitz 
perceived such a result, nor could I myself trace 
such an odour when using the raw oil of Eucalyp- 
tus amygdalina ; hence in future trials it should be 
recorded with absolute precision from what 
species the oil, used in any experiments, was 
derived ; furthermore, it seems also clear that the 
oil, altered by Professor Schulz’s method, has 
lost some of its, perhaps not altogether unobjec- 
tionable, properties. Again the Mallee-oil from 
Eucalyptus oleosa, E. gracilis, E. uncinata, E. 
incrassata, and perhaps some other species recently 
also entering into commerce, through Mr. 
