1879.] on Ooining Silver into Rupees. 67 
We have already seen that 59:1437 per cent. of the weight of ingots 
is converted into blanks. These were in tale 732,124, of which 687,003 were 
good and 24,858 heavy but capable of being reduced, or in all 711,861 capable 
of being coined, and we now find that of those sent on from the Adjusting 
Room 97:68080 per cent, become good Rupees. If then, all had been sent 
on we might have expected 695,351 good coins whose standard weight would 
be 56°181 per cent. of that of the ingots. 
Further, we find that 681,812 blanks as they leave the adjuster lose in 
after processes 3942 tolahs, or 70,956 grains, in weight. Thus the average 
loss on each is 0°10407* grains, and each blank leaving the adjuster 
should on an average weigh 180°10407 grains, and each bag of 2000 blanks 
2001°156 tolahs, 
The general procedure of Minting has been unchanged for very many 
years, but, as the effects of the coining processes must vary with details of 
manipulation impossible to define exactly, I some time ago recognized 
that it was necessary to modify both the amount of additional alloy and the 
excess weight of the blank over the coin, and resolved to investigate the 
matter. 
I now offer these results to a wider circle than they were originally 
meant for, because I think that many will be interested in knowing the care 
that is taken to keep the coinage of India'to its standard value. I hope too 
that it may lead to the publication and circulation of similar results from 
other Mints and thus to advance in Minting. 
* This amount, like the y of the fineness (see note p, 60), varies with manipulation 
and the quantities are dependent on each other, 
