Was the making of the notes a legal tender necessary to the carrying on the war? In other words, was it necessary to the execution of the power to borrow money? It is not the question whether the issue of notes was necessary, nor whether any of the financial measures of the government were necessary. The issuing of the circulation commonly known as greenbacks was necessary, and was constitutional. They were necessary to the payment of the army and the navy and to all the purposes for which the government uses money. The banks had suspended specie payment, and the government was reduced to the alternative of using their paper or issuing its own. Now it is a common error, and in our judgment it was the error of the opinion of the minority in _Hepburn_ v. _Griswold_, and is the error of the opinion just read, that considerations pertinent to the issue of United States notes have been urged in justification of making them a legal tender. The real question is, Was the making them a legal tender a necessary means to the execution of the power to borrow money? If the notes would circulate as well without as with this quality it is idle to urge the plea of such necessity. But the circulation of the notes was amply provided for by making them receivable for all national taxes, all dues to the government, and all loans. This was the provision relied upon for the purpose by the secretary when the bill was first prepared, and his reflections since have convinced him that it was sufficient. Nobody could pay a tax, or any debt, or buy a bond without using these notes. As the notes, not being immediately redeemable, would undoubtedly be cheaper than coin, they would be preferred by debtors and purchasers. They would thus, by the universal law of trade, pass into general circulation. As long as they were maintained by the government at or near par value of specie they would be accepted in payment of all dues, private as well as public. Debtors, as a general rule, would pay in nothing else unless compelled by suit, and creditors would accept them as long as they would lose less by acceptance than by suit. In new transactions, sellers would demand and purchasers would pay the premium for specie in the prices of commodities. The difference to them, in the currency, whether of coin or of paper, would be in the fluctuations to which the latter is subject. So long as notes should not sink so low as to induce creditors to refuse to receive them because they could not be said to be in any just sense payments of debts due, a provision for making them a legal tender would be without effect except to discredit the currency to which it was applied. The real support of note circulation not convertible on demand into coin, is receivability for debts due the government, including specie loans, and limitation of amount. If the amount is smaller than is needed for the transactions of the country, and the law allows the use in these transactions of but one