Part IV.] Puran Singh : Preparation of Tannin Extracts. 23 
would, calculated from the estimates given by Messrs. Dumesny and 
Noyer, require a capital of H2,86,000. 
It goes without saying that the larger the scale of manufacture, the 
greater is the economy effected in the cost of production. There are 
tannin factories in Europe dealing with from 10 tons to 120 tons of 
chestnut wood per 24 hours paying in the case of a 60-ton factory 30— 
33 per cent, of profit on the capital outlay, although this wood contains 
only some 8 per cent, of tannin. In this case, however, no heavy freight 
charges have to be paid as the factories are near the centres of 
consumption. 
