TO PRINCIPAL TIMBER TREES, ETC. 
51 
means of concentrated sulphuric acid. The hark improves by 
age and desiccation, and yields about 40 per cent, of catechu, 
rather more than half of which is tannic acid. Bichromate of 
potash added in a minute quantity to the boiling solution of 
mimosa-tannin produces a ruby-red liquid, fit for dye purposes, 
and this solution gives, with the salts of sub-oxyde of iron, black 
pigments ; and with the salts of the full oxyde of iron, red-brown 
dyes. 
Acacia saligna, Wendland. 
South West Australia, where it is the principal tree chosen for 
tanner’s bark. It is a widely spreading small tree, fit for avenues. 
The bark contains nearly BO per cent, of mimosa-tannin. 
Achillea moschata, Wulfen. 
Alps of Europe. The Genipi or Iva of the alpine inhabitants. 
This perennial herb ought to be transferred to our snowy moun- 
tains. With the allied A. nana (L.) and A. atrata (L.), it enters 
as a component into the aromatic medicinal Swiss tea. Many 
species of this genus, including the Yarrow, are wholesome to 
sheep. A. fragrantissima ( Reichenbach ), is a shrubby species 
from the deserts of Egypt, valuable for its medicinal flowers. 
Achras sapota, Linn6. 
The Sapodilla Plum of West India and Central Continental 
America. It is not improbable that this fine evergreen tree 
would produce its delicious fruit in East Gippsland within 
Victorian boundaries, as tall palms and many other plants of 
tropical type occur there. Moreover Achras Australis , a tree 
yielding also tolerably good fruit, occurs as far south as Kiama 
in New South Wales, where the clime is very similar to that of 
many forest regions of Victoria. Other sapotaceous trees, pro- 
ducing table fruit, such as the Lucuma mammosa (the Marmalade 
tree), Lucuma Bonplandi, Clirysophyllum Cainito (the Star apple), 
all from West India ; and Lucuma Caimito of Peru might also be 
subjected to trial culture in our warmest forest valleys ; so 
furthermore many of the trees of this order, from which gutta- 
percha is obtained (species of Isonandra, Sideroxylon, Ceratophorus , 
Cacosmanthus, Bassia, Mimusops and Imhricaria ), may prove hardy 
in our sheltered woodlands, as they seem to need rather an 
equable htimid mild clime than the heat of the torrid zone. 
Adenostemum nitidum, Persoon. 
South Chili, where this stately tree passes by the appellations : 
Queule, Nuble and Arauco . Wood durable and beautifully 
veined. Fruit edible. 
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