BY J. H. MAIDEN. 



423 



few black or dirty particles. Eventually almost everything 

 dissolves, with the exception of a little accidental impurity. 



100-0 

 Tannic acid determination (Lowenthal), 54*349 per cent. 



No. 73. A sample from Uralba, Wardell, N.S.W., collected 

 May, 1891, has also been examined. It is a new sample with no 

 important differences from the foregoing. 

 It was analysed August, 1891, with the fol 

 Catechin and tannic acid 

 Resin 



Ligneous matter, &c. 

 Moisture ... 

 Ash 



100-00 

 Tannic acid determination (Lowenthal J, 50*45 per cent. 

 The presence of resin in a weighable quantity in this kino is 

 worthy of notice. 



No. 74. Two samples from Queensland, received from Mr. F. 

 M. Bailey, F.L.S., Colonial Botanist. 



The physical description of the preceding sample will apply here. 



In cold water the layer at the bottom of the vessel becomes, if 

 undisturbed, of the colour of treacle. The tint is precisely the same 

 as that of a guaranteed sample of Pterocarpus marsupium kino 

 received from India. It leaves a small quantity of a brown 

 residue which produces turbidity if disturbed. 



Water at 100° C. (1 grm. to 1 litre), yields a beautifully clear 

 solution of the colour of colza oil. This remark applies also to 

 the preceding sample. 



