EUCALYPTUS TREES. 61 
ments, here chiefly by Messrs. Bosisto and Osborne, 
and in London by Dr. Gladstone, in reference to the 
illuminating power, the solvent properties, and other 
special qualities of each of these oils. The principal 
results of these experiments were recorded in reports 
of the exhibition jurors at the time. Mr. Bosisto, 
with great sagacity and a commendable perseverance, 
but also at first with much sacrifice of capital, carried 
his researches so far as to give to them great utilita- 
rian value and mercantile dimensions ; moreover, he 
patented a process by which he was enabled to derive 
from the eucalyptus foliage the greatest amount of 
the purest essential oil with the least consumption of 
fuel and application of labor. Under this process it 
became possible to produce the oil at a price so cheap 
as to allow the article to be used in various branches 
of art—for instance, in the manufacture of scented 
soap, it having been ascertained that this oil sur- 
passed any other in value for diluting the oils of roses, 
of orange flowers, and other very costly oils, for 
which purposes it proved far more valuable than the 
oil of rosemary and other ethereal oils hitherto used. 
Suddenly, then, such a demand arose that our 
thoughtful and enterprising fellow-citizen could ex- 
port already about nine thousand pounds to England 
and three thousand pounds to foreign ports, though 
even now this oil is as yet but very imperfectly known 
abroad. The average quantity now produced at his 
establishment, for export, is seven hundred pounds 
per month. Alcoholic extracts of the febrifugal foli- 
age of Eucalyptus globulus and Eucalyptus amygda- 
lina have also been exported in quantity by the same 
gentleman to England, Germany, and America, 
