What fixity of value between the different units of its currency is to the internal transactions of a country, a par of exchange is to its external transactions. A par of exchange between any two countries expresses the relative exchange values of their respective currencies in terms of each other. [pg 70] ¹³⁰ Cf. _India in_ 1880, by Sir Richard Temple, p. 469; Sir Charles Wood’s _Administration of Indian Affairs_, p. 89; also _The Indian Statesman_, January 15 (1884). ¹³¹ It should, however, be noted that between 1862 and 1876, at some centres comprising the head offices and branch offices of the Presidency banks, the Independent Treasury System was suspended. By way of compensation for the loss of their right of note issue, the Presidency banks were given certain concessions by the Government under agreements entered into in accordance with Act XXIV of 1861. Among the concessions one was the use by the banks of Government balances. The first agreement, that of 1862, conceded to the banks the following privileges in regard to the Government balances: (1) The unrestricted use for banking purposes “of all moneys and balances which but for the agreement would have been received or held at the General Treasury” up to the limit of 70 lakhs in the case of the Bank of Bengal, 40 lakhs in the case of the Bank of Bombay, and 15 lakhs in the case of the Bank of Madras. (2) The option of setting aside the excess over these sums in a separate strong room for production when demanded, or of investing it in Government paper or other authorized securities, the power of investment being subject to the condition that the banks should be “at all times answerable and accountable to Government for the surplus cash balance for the time being.” (3) The right to interest from Government on the difference between the actual balance and 50 lakhs in the case of the Bank of Bengal, 30 lakhs in the case of the Bank of Bombay, and 10 lakhs in the case of the Bank of Madras, whenever the balances at these banks fell below these minima. (4) Permission to the banks to use the Government balances at their branches on similar terms, suitable limits being fixed in each case, as in the head office agreements.