190 ON SOME N.S.W. TAX- SUBSTANCES. 



A small bushy tree. Timber exceedingly hard and tougli, and 

 possessing a very disagreeable smell when fresh or green. Used 

 by the natives in the manufacture of short weapons such as clubs. 

 Leaves eaten by stock. Bark from an oldish tree. In appearance 

 it much resembles that from A. homalophylla, but the following 

 differences may be pointed out. Thickness } s inch. Outer bark 

 darker and inner bark lighter. Colour of powder, light reddish- 

 brown. 



Extract. — Yields 20*7 per cent, to water at 100° C, affording 

 a ruby-coloured solution. Colour of moist residue Vandyke brown. 



Catechu-tannic acid — 9 "7 2 per cent. 



35 and 36. Acacia longifolia, Willcl. See page 90, Proc. R.S. 



(N.S.W.) 1887, for botanical particulars of this Wattle. 



Figured Curtis' Botanic Magazine t. 1828 and var. Sophorce 



t. 28 of Brown's " Forest Flora of South Australia." 



Mr. W. Adam informs me that Sydney fishermen often tan their 



sails and nets with the bark of Acacia longifolia, and are well 



pleased with it, the articles being pliable after use ; others use 



Ironbark (Eucalyptus siderophloia and leucoxylon) but the sails 



Arc. are then stiff and hard. 



35. Locality whence this particular specimen was obtained — 

 On the banks of a small creek a few yards to the West 

 of Oatley's platform, Illawarra Railway Line. 

 Geological Formation — Sandstone. 

 Part of the Tree Examined — Bark. 

 Particulars of the tree (sapling) whence it was obtained — 



Height 15 feet, diameter 4 inches. 

 Collected 23rd July, 1887. Analysed 12th to 30th September 

 1887. 

 The wood of this tree was injured to some extent by the ravages 

 of a coleopterous insect. Two days after stripping the bark was 

 dried on a water-bath with the following result : 



Weight green ... ... ... 17*694 



Weight dry ... ... ... 9 377 



Loss 8-317 

 .*. loss on drying ■= 47*005 say 47 per cent. 

 Compared with the A. longifolia bark referred to in my previous 

 paper (page 90) the general appearance of this bark is much the 

 same outside, though at places slightly darker. The inner bark 

 is lighter and more yellowish, and being from a younger tree the 

 thickness is much less, i.e., only about -, X (T of an inch. It is more 

 fibrous than the bark from Hyde referred to in the present paper* 





