172 J. H. MAIDEN. 



•during the summer months on the gum obtained from different 

 Acacias, and the same was true of other tribes. 



The following extract from the Sydney Morning Herald of the 

 :24th March, 1891 is to the point: — Albury, Monday. — A little 

 boy named Finch, who was lost on the 15th instant, was recovered 

 yesterday by a black tracker engaged from Benalla. The child 

 seemed thin, but was otherwise not much the worse for his eight 

 days in the bush. He was found 10 miles from home, and said 

 he had lived on wattle gum. Over 400 people had been in search 

 of the boy all the week, and were just on the point of abandoning 

 their pursuit as useless." 



For a brief description of Wattle Gum see Pharm. Journ. [3], 

 xx., 719. 



Cherry Tree Gum is in Europe rendered soluble and decolourised 

 by the addition of sulphuric acid (see Pharm. Journ. 29th Oct., 

 1892) and similar treatment may be applied to some of our less 

 soluble wattle gums. 



Acacia Bakeri, Maiden. 



See Maiden and Smith (63a). 



Acacia Cunninghamii, Hook. 



Dr. T. L. Bancroft, states that in Queensland, gum of this 

 species makes a good adhesive mucilage; it is, however, dark in 

 colour. Lauterer (33) gives an analysis. 



Acacia dealbata, Link., "Silver Wattle." 



See Heckel and Schlagdenhauffen (17) for an exhaustive 

 -account of this gum. The species is said to yield a soluble gum 

 in Java on the authority of Dr. de Vrij, (Chem. and Drug g., Aug. 

 20, 1892, p. 260). Lauterer (33) gives an analysis of this gum. 

 Acacia decurrens, Willd., "Green Wattle," "Black Wattle." 



The gum of this species contains a complex carbo-hydrate of 

 the galacto-araban character, and does not differ essentially from 

 gum-arabic, peach-gum or cherry-gum. Winthrop E. Stone (Amer. 

 Chem. Journ. xvii., 196-199; see also Journ Soc. Chem. Znd., 

 July 1895, p. 667). Lauterer (33) gives an analysis of this gum. 



