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



Since the above was written, I observe that Baron Mueller has 

 promoted the mollissima variety of A. decurrens to the rank of a 

 species. (The Chemist and Druygist of Australasia, May 2nd, 

 1887). Speaking of the typical A. decurrens, the Baron points 

 out that (within Victoria territory) it is limited to North-eastern 

 regions ; that the branchlets from the decurrence of the leaf-stalks 

 are still more angular than those of A. mollissima and A. dealbata: 

 the leaflets are conspicuously longer, and the flowering-time is 

 different from either of the two ; moreover, the bark is considered 

 for tanning purposes not quite so powerful as that of A. mollissima. 



29. Fusanus acuminatus, R. Br., B. Fl. vi., 215. Syn. Santalum 

 acuminatum, A. DC, p. 64, Mueller's Census. N. O. 

 Santalace?e. 

 Found in all the colonies except Tasmania, chiefly in rather- 

 dry country. 

 Vernacular Name—" Quandong." The uses of the timber, 



fruit, and seeds are well known. 

 Locality whence this particular specimen was obtained — • 



Ivanlioe, via Hay, N.S.W. 

 Part of the Tree Examined — Bark. 

 Particulars of the trees whence it was obtained — Height 10 



to 12 feet, diameter 4 to 6 inches. Plentiful. 

 Collected 4th October, 1886. Analysed 5th to 23rd July, 1887. 



Bark from almost smooth to moderately fissured, having the 

 fissures as much as J inch deep in some cases. Both outer and 

 inner bark more or less flaky, and contain but little fibre. Colour 

 of outer bark light or dark grey, of inner bark brown or warm 

 red-brown. Average thickness of bark barely \ inch. Yields a 

 reddish-brown powder, and an especially rich colour to water. 



Extract. — Soluble in water at 100° C. to the extent of 39*46 

 per cent. 



Tannic acid (closely allied to, if not absolutely identical with 

 catechu-tannic acid) — 18*84 per cent. 



Qualitative Tests — Notes (First Supplement.) 



1. In the list of re-agents for the qualitative tests I have 

 substituted the acetate for the sulphate of manganese (12), and 

 ammonium nitromolybdate for hydrodisodic phosphate (15), as I 

 did not consider the precipitates with the latter re-agent sufficiently 

 characteristic. J have added Zinc acetate (17) to the list of re- 

 agents. 



