50, 



Bkaciiycjhtox Grhookii, /•'. r. M. 

 N.O. StercuUacea-'. .' " Kurrajong.'' 



Sample 1.— Collected 13tli September, 1891, at Camp 

 centre of the Victoria Desert. Granite formation. 



Sample 2. — Collected 16tli November, 1891, from trees on 

 granite formation. 



The properties and composition of this gum are identical with 

 tliat of other gums from tlie same genus, and described fully in 

 my paper, " Sterculia-gura : its similarities and dissimilarities to 

 Tragacanth," Pharm. Journ. [3], XX., 381, to which tlie reader is 

 referred. Briefly, the present sample resembles the runnings of 

 a spermaceti candle. It is in vermiform and flaky pieces ; most 

 of them are white, but some of them are stained yellow and 

 brown. 



KINGS. 



EuCAfA-PTUS TESSELLARIS, F. T. M. 



N.O. Myrtacea' ■■ " Blood Gum." 

 Collected 15th August, 1891, at Camp 33, near Barrow Range. 

 Sand on granite. 



This kino has a sweetish odour, is of a burut-sienna-brown 

 colour in bulk, and, owing to its friable nature, it is invery small 

 pieces. The powder is of a mahogany colour. It dissolves ^ in 

 boiling water, but deposits catechin on cooling. The solution 

 (one gram to the litre) is turbid, and of a very pale orange-brown 

 colour. 



It was analysed 1st June, 1892*, with tlie following result:— 



Tannic acid and catechin ... ... ... 88-35 



Moisture ■•• 10-40 



Ash -50 



Impurities (Ligneous matter, (tc.)... ... "/-J 



100-00 

 A determination of the tannic acid according to Lowenthal's 

 process gave 68-5 per cent. 



This kino belongs to my Turbid Group, f A description of a 

 Queensland sample of kino of this species will be found in the paper 

 referred to in the footnote. In comparing the two kinos (of 

 E. tesaellaris, p. 417 of paper quoted, and E. terminalis, p. 415), 

 it will be observed liow close is the similarity between tessellaris- 



* In kinos it is always important to state the approximate dates of collec 

 tion and analysis, as their composition alters witli age. 



t" The Examination of Kinos as an Aid in the Diagnosis of Euoalypts." 

 I'art III The Tnrbid Group. J. H. Maiden iu Proc. Linn. Soc., 

 N.S.W. [-2], VI., 380. 



