2t6 ON SOME N.S.W. TAN-SUBSTANCES. 



unusual diameter of two feet. Colour of bark grey to black, but 

 chiefly the latter. Innumerable small fissures give the bark of 

 this tree (a very small one of its kind) a suberose appearance- 

 Inner bark light coloured and containing but little fibre. Total 

 thickness 1 line. Colour when powdered dirty brown. 



Two days after stripping it was put in the water-bath with the- 

 following result : 



Weight green ... ... 31-779 grms. 



Weight dry 16-181 „ 



Loss 15-598 

 .-. loss of weight in drying = 49-082 per cent. 



Extract. — Yields 29-99 per cent, to water at 100° C. Colour 

 of solution orange-brown, not absolutely clear and bright ; of moist 

 residue Vandyke brown in general appearance. It is composed 

 of a mixture of very dark drown and light brown particles. 



Tannic acid — 15*752 per cent. 



