ON SOME N.S.W. TAN-SUBSTANCES. 269 



83. Acacia salicina, Lindl. See No. 82. 



Sample obtained from Momba, Wilcarmia. Height of the tree, 

 30 to 40 feet ; diameter, 12 to 18 inches. Collected 26th August, 

 1887. Analysed 4th to 6th September, 1888. 



Not flaky on the outside like the preceding, but a harder, 

 "bonier" bark (if I may be allowed the expression). More 

 rugged, but obviously a promising bark. The resinoid substance 

 alluded to in the preceding is just noticeable. Thickness up to 

 one inch. This species is undoubtedly worthy of conservation, 

 and even culture, in the dry interior where it is found, particularly 

 as the barks there are usually so poor in tannic acid. Colour Of 

 dry powder, light reddish-brown, with lighter particles. 



Extract. — 33 1 per cent. Colour, light ruby, inclining to 

 orange; of moist residue, dirty brown. 



Tannic acid — 13 "5 11 per cent. Non-tannin and impurities — • 

 1-422 per cent. 



84. Acacia prominens, A. Cunn.* N.O. Leguminosse, B. FL, 

 ii., 371. 



Found in New South Wales. 



Sample obtained from Penshurst, Illawarra Line, near Sydney. 

 Height of tree, 10 to 15 feet; diameter, ljto 2 inches. Collected 

 17th September, 1887. Analysed 16th to 18th August, 1888. 



The percentage of moisture in this bark capable of being driven 

 off at time of collecting, was ascertained to be 58'3 per cent. 



A light coloured bark, very thin (of the thickness of stout 

 brown paper), reminding one strongly of the well-known bark of 

 the Sydney " Golden "Wattle " (A. longifolia). Strips of it are 

 very tough, and would make good tying material if not bent 

 across too much. Colour of dry powder, reddish-brown drab. 



Extract. — 39-98 per cent. Colour, pale orange brown, slightly 

 turbid on cooling, owing to the presence of mucilage, as in 

 A. longifolia ; of moist residue, burnt umber. 



Tannic acid — 14'425 per cent. Non-tannin and imjmrities — 

 1-727 per cent. 



85. Acacia pendula, A. Cunn., N.O. LeguminosaB, B. FL, ii., 383. 



Found in New South Wales and Queensland. 



Sample obtained from Yandarlo, Wilcaimia. ct Bastard 

 Gidgah " or "Nilyah." Height of tree, 10 to 12 feet; diameter, 

 4 to 6 inches. Collected 7th September, 1887. Analysed 15th 

 and 16th August, 1888. 



* Included under A. linifolia, Willd. in Muell. Cens., p. 45, in which I 

 cannot concur. 



