phepauation of cotch and kattha, 225 



yielded from 5 to 6 per cent, of catecHu and 14 per cent, of 

 tannin. 



The figures just quoted prove that with improved methods of 

 manufacture every khair tree, including those at present rejected 

 by the kattha boilers, will furnish catechin in paying quantities, 

 while the yield of tannin, so large a proportion of which is now 

 deliberately sacrificed by absorption in the sand, will be aU saved 

 for export to Europe. 



2 a 



