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Gums may, at certain seasons of the year, have no noticeable bluish cast at all. If I 
were to make a list of the Blue Gums, so called, the list would be a vefy big one, but I 
will only confine myself to the principal ones. The tree to which the name of Blue 
Gum was originally given is E. saligtw, Sm. This is the Blue Gum of Sydney, and I 
need scarcely say that Sydney was the first settled part of Australia. It gave its name 
to numerous Blue Gum flats at the head of the Parramatta River and Hawkesbury River 
district. Subsequently, the name spread further north. E. saligna' s blueness (not very 
marked) chiefly applies to the trunk. Later on, the name Blue Gum was applied to 
E. globulus Labill., which ia the Tasmanian and Victorian Blue Gum, although there is 
some of it in cold New South Wales localities a considerable distance from Sydney. The 
blueness (glaucousness) of E. globulus is greater than in the case of E. saligna, and as 
the tree will stand very much more cold than E. saligna, and is very ornamental, the 
seed was largely exported to Europe, and also to the United States, chiefly through the 
influence of the late Baron von Mueller, who was the Government Botanist of Victoria, 
in which State the tree attains remarkable development. The Blue Gum of Queensland 
ia E. tereticornis Sm., which is the Forest Red Gum of New South Wales. Now, instead 
of going north, let us turn west. E. leucoxylan is the Blue Gum of South Australia, 
while Western Australia has one principal Blue Gum, viz., E. rudis Endl. Australia is 
a continent of three millions of square miles. Politically we are all united, and people 
of the various States are like brothers, but as regards the naming of trees, every State, 
and, indeed, every district, clings with greater or less tenacity to its own vernacular 
names. 
LCtlTCS. The mature leaves of this species sometimes attain a remarkable 
length. For example, Mr. C. French, some years ago. measured leaves at Beechworth, 
Victoria, 28 inches in length. 
Timber. The timber of E. globidus is of a rather pale colour, hard, heavy, 
strong, and durable, more twisted than that of E. Miqua and many other fissile kinds, 
but not so interlocked as that of E. rostrata, E. mdliodora and most of the species 
called "' Box Trees." Its specific gravity varies between -698 and 1-108. In trans- 
verse strain its strength is about equal to English Oak ; in durability; it occupies a 
medium position amongst Eucalypts. 
The following was the number of years assigned to the sound wood of E. gkbidiis 
when wooden ship-building was a more important industry than at present : For 
floors of ships, first aud second futtocka, main and rider-keelson,, beams and hook, 
ten years; for third futtocka and top-timbers, stem and stern-posts, transomes, knight- 
heads, hawse-timbers, apron, dead wood, knees, rudder, windlass, timber and bilge- 
strakes, and ceilings between, clams, stringers, shelf-pieces and lower deck- waterways, 
nine years; for light water-mark to wales, top-sides, sheer-strakes, upper deck-waterways 
spirkiting and planksheers, eight years; keel to first futtock heads, thence to light 
watermark, twelve years. This wood is also very extensively use 1 by carriage-builders 
;in the report of the Victorian Carriage Board it ia recommended as one of four colonial 
timbers suited for railway carriage building), and manufacturers of implements; for 
