184 J. H. MAIDEN. 



"The physical properties of Eucalyptus kino nearly agree with 

 those of ordinary kino; it forms dark red, more or less transparent 

 grains; in thin fragments, under the microscope, quite transparent 

 and amorphous. They sink in cold water. Its specific gravity is 

 1*110; after complete expulsion of the air 1*140. Water dissolves 

 it more or less readily to a red, yellowish or brownish liquid of 

 astringent taste. Shaken with water, all samples give a frothy 

 solution." 



In the "Eucalyptographia," under E. longifolia, Baron von 

 Mueller collects together in tabular form the percentages of kino- 

 tannic acid in the bark (not in the kino) of various species of 

 Eucalyptus. In a paper in the Pharm. Journ. [3] xvi., 898 under 

 "Eucalyptus Kino" this table is reproduced, but entitled, "The 

 amount of the astringent exudation afforded by different species," 

 a sentence which is not only incorrect, but which, (since the 

 expression per cent, is used) appears devoid of meaning. 



I have not been able to find the following papers in the colony: 



1. "On the astringent principle of kino." T. Gerding, Chem. 



Gaz., 1851, 261. 



2. "On Kino." H. Eissfeldt, Ann. Ch. Pharm. xcii., 101. 



They both refer to the official kino, but they are probably most 

 useful, and I have only been able to obtain a detached statement 

 or two from their contents. 



Angophora intermedia, DC, One of the "Rough-barked Apples." 

 Bees industriously remove this and other apple-tree kinos in 

 the viscid state. 



For a full account of this kino see Maiden (60), and of the 

 liquid kino see (50). As regards the latter, the statement is 

 made in the N. S. Wales Catalogue, Paris Exhib. 1867, that 

 "Apple tree juice is used as a varnish." 



Angophora lanceolala, Oav., "Smooth-barked Apple." 



For a full account of the kino see Maiden (60) and Lauterer (33). 



