TANS. 
(FOR SUCH TANS AS ARE KINOS, SEE 
“ KINOS.”) 
Acacia s 
PP; “Wattle Barks.” 
Wattle Barks are often gathered in Australia all the year round, 
whereas the bark should only be stripped for three or four months 
in the year; (the months recommended are September, October, 
November, and December) ; out of that season there is usually a 
depreciation of tanninin the bark. In these months, also, the sap 
usually rises without intermission, and the bark is easily removed 
from the tree. The impression appears to have prevailed amongst 
bark-strippers that whenever the bark would strip it possessed full 
tanning properties, but this is erroneous. After a few days of 
rain during other seasons of the year, a temporary flow of sap will 
cause the bark to be easily detached from the trunk, but then it is 
greatly inferior in quality. The bark obtained from trees growing 
on lime-stone formations is greatly inferior in tannin to that of trees 
grown on any other formation. (Vide Report of the Wattle Bark 
Board, Melbourne, 1878.) 
Wattle Bark should only be procured from mature trees, #.¢., 
from those whose bark possesses the full natural strength. 
It should be purchased in the stick or bundle. ‘In this form 
its quality can be more readily judged; but when the supply of 
mature trees became diminished, nearly all the bark was chopped 
or ground prior to shipment, good and inferior being bagged 
together.” 
For export to England, however, it is perhaps best sent in the 
form of extract, an enormous saving in freight being effected in 
this way. The following letter from a well-known London firm of 
