¹⁸ _Ibid._ par. 28. How the English and the Indian systems of weights were made to correspond to each other may be seen from the following:— ───────────────────────────────────────────────────── _Indian._ _English._ 8 = 1 massa = 15 troy grs. ruttees 12 = 1 tola (or = 180 troy grs. massas sicca) 80 tolas = 1 seer = 2½ troy pounds. 40 seers = 1 maund (or = 100 troy mun) pounds. ───────────────────────────────────────────────────── [pg 12] principal coin to be established was to be different from 180 grs. troy, it was believed there would be an unhappy deviation from the ancient practice which made the weight of the coin the basis of other weights and measures. Besides, a unit of 180 grs. weight was not only suitable from this point of view, but had also in its favour the added convenience of assimilating the Indian with the English units of weight.¹⁸ While these were the reasons in favour¹⁹ of fixing the weight of the principal unit of currency at 180 grs. troy, the project of making it 165 grs. fine was not without its justification. The ruling consideration in selecting 165 grs. as the standard of fineness was, as in the matter of selecting the standard weight, to cause the least possible disturbance in existing arrangements. That this standard of fineness was not very different from those of the silver coins recognised by the different Governments in India as the principal units of their currency, may be seen from the following comparative statement on p. 13. ¹⁹ Attention may be drawn in this connection to the dissenting opinion of Captain Jervis on the project of 180 grs. troy as the unit of weight for the rupee. Cf. his most exhaustive treatise called _The Expediency and Facility of establishing the Metrological and Monetary Systems throughout India on a Scientific and Permanent Basis, grounded on an Analytical Review of the Weights, Measures and Coins of India_ …, Bombay, 1836, pp. 49–64.