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REPORT OF THE VICTORIAN GOVERNMENT BOTANIST. 193
Mallotus polyadeuos, M. Ballachyi, M. repandus, M. Chinensis, M.
pycHOstachys, Macaranga involucrata, Oxylobium CaUistachys, Pitheco-
lobium StUherlandi, Archidendron Lucyi, Quhitiuia Fmckneri, Cidtsia
viburnea, Hakea macrocaipa, Garnarvonia aralifolia, Dryandra fiori-
bunda, Myrsine uchradifoUa, Bassia galaclodendron, Chrysophyllum pru-
niferum, C. myrsinodendron, Ahtonia verticillosa, A. villusa, A. excelsa,
Cerbera Odollam, Casiiarina Fraseriana.
In the event of its proving inadvisable to devote the New Exhibi-
tion building to the intended collections of a general industrial museum,
it might be advisable to enlarge the Phytological Museum building in
the Garden, in order that a full display of vegetable objects of indus-
trial interest may be formed. The absolute want both of space and
accommodation frustrated every attempt to render my establishment
also useful in this direction.
During the Intercolonial Eshibitioa an apt opportunity arose to re-
present more fully the technological value of many native vegetable
products, and for this purpose, from the ordinary resources of the
establishment a laboratorv was constructed. I need not detail the
experiments conducted in reference to the value and percentage of
many kinds of paper material, essential oils, dye stuffs, wood vinegar,
tar, wood spirits, and tannic acid, from native plants, especially trees
on all of which ample information was offered in the documents con-
cerning the Exhibition. These phyto-chemical observations have since
been continued as far as circumstances permitted.
Appended to this Report are the tables of very extensive series of
analyses, conducted in detail by Mr. Chr. Hoffmann, in reference to the
yield of potash in our more gregarious native trees. They show that
the manufactiu'e of this alkali can be pursued here more profitably than
in those countries in which the supply of original timber is far lesS ex-
tensive than in Victoria. The examination into the yield of iodine
and bromine in our seaweeds is commenced ; likewise, the yield of
soda in one of the principal littoral plants is recorded. I have entered
also on a series of toxicological researches, by which it is hoped the
nature of those poison plants so injurious to stock will be fully eluci-
dated.
A supplementary catalogue of the library is also given; many of
these works, however, had to be provided by the Director's private
means.
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