Double eagles and gold dollars were authorized to be "struck and coined" at the mint, by the act of March 3, 1849, but the standard established for other gold coins was not changed, and the provision was that the new coins should also be legal tender for their coined value.

Fractional silver coins were somewhat reduced in value by the act of February 21st, 1853, but the same act provided to the effect that the silver coins issued in conformity thereto should not be a legal tender for any sum exceeding five dollars, showing that the purpose of the enactment was to prevent the fractional coins, so essential for daily use, from being hoarded or otherwise withdrawn from circulation.

Suppose it be conceded, however, that the effect of that act was slightly to debase the fractional silver coins struck and coined under it, still it is quite clear that the amount was too inconsiderable to furnish any solid argument against the proposition that the standard of value in the United States was fixed by the constitution, and that such was the understanding, both of the government and of the people of the United States, for a period of more than seventy years from the time the constitution was adopted and put in successful operation under the laws of congress. Throughout that period the value of the money unit was never diminished, and it remains to-day, in respect to value, what it was when it was defined in the act establishing the mint, and it is safe to affirm that no one of the changes made in the other coins, except perhaps the fractional silver coins, ever extended one whit beyond the appropriate limit of constitutional regulation.

Treasury notes, called United States notes, were authorized to be issued by the act of February 25th, 1862, to the amount of $150,000,000, on the credit of the United States, but they were not to bear interest, and were to be made payable to bearer at the treasury. They were to be issued by the secretary of the treasury, and the further provision was that the notes so issued should be lawful money and legal tender in payment of all debts, public and private, within the United States, except duties on imports and interest upon bonds and notes of the United States, which the act provides "shall be paid in coin." Subsequent acts passed for a similar purpose also except "certificates of indebtedness and of deposit," but it will not be necessary to refer specially to the other acts, as the history of that legislation is fully given in the prior decision of this court upon the same subject.

Strictly examined it is doubtful whether either of the cases before the court present any such questions as those which have been discussed in the opinion of the majority of the court just read; but suppose they do, which is not admitted, it then becomes necessary to inquire in the first place whether those questions are not closed by the recorded decisions of this court. Two questions are examined in the opinion of the majority of the court: (1.) Whether the legal tender acts are constitutional as to contracts made before the acts were passed. (2.) Whether they are valid if applied to contracts made since their passage.

Assume that the views here expressed are correct, and it matters not whether the contract was made before or after the act of congress was passed, as it necessarily follows that congress cannot, under any circumstances, make paper promises, of any kind, a legal tender in payment of debts. Prior to the decision just pronounced it is conceded that the second question presented in the record was never determined by this court, except as it is involved in the first question, but it is admitted by the majority of the court that the first question, that is the question whether the acts under consideration are constitutional as to contracts made before their passage, was fully presented in the case of Hepburn v. Griswold, and that the court decided that an act of congress making mere paper promises to pay dollars a legal tender in payment of debts previously contracted is unconstitutional and void.

Admitted or not, it is as clear as anything in legal decision can be that the judgment of the court in that case controls the first question presented in the cases before the court, unless it be held that the judgment in that case was given for the wrong party and that the opinion given by the chief justice ought to be overruled.

Attempt is made to show that the second question is an open one, but the two, in my judgment, involve the same considerations, as congress possesses no other power upon the subject than that which is derived from the grant to coin money, regulate the value thereof and of foreign coin. By that remark it is not meant to deny the proposition that congress in executing the express grants may not pass all laws which shall be necessary and proper for carrying the same into execution, as provided in another clause of the same section of the constitution. Much consideration of that topic is not required, as the discussion was pretty nearly exhausted by the chief justice in the case of Hepburn v. Griswold, which arose under the same act and in which he gave the opinion. In that case the contract bore date prior to the passage of the law, and he showed conclusively that it could never be necessary and proper, within the meaning of the constitution, that congress, in executing any of the express powers, should pass laws to compel a creditor to accept paper promises as fulfilling a contract for the payment of money expressed in dollars. Obviously the decision was confined to the case before the court, but I am of the opinion that the same rule must be applied whether the contract was made before or after the passage of the law, as the contract for the payment of money, expressed in dollars, is a contract to make the payment in such money as the constitution recognizes and establishes as a standard of value. Money values can no more be measured without a standard of value than distances without a standard of extent, or quantities without a standard of weights or measures, and it is as necessary that there should be a money unit as that there should be a unit of extent, or of weight, or quantity.

Credit currency, whether issued by the states or the United States, or by private corporations or individuals, is not recognized by the constitution as the standard of value, nor can it be made such by any law which congress or the states can pass, as the laws of trade are stronger than any legislative enactment. Commerce requires a standard of value, and all experience warrants the prediction that commerce will have it, whether the United States agree or disagree, as the laws of commerce in that respect are stronger than the laws of any single nation of the commercial world. Values cannot be measured without a standard any more than time or duration, or length, surface, or solidity, or weight, gravity, or quantity. Something in every such case must be adopted as a unit which bears a known relation to that which is to be measured, as the dollar for values, the hour for time or duration, the foot of twelve inches for length, the yard for cloth measure, the square foot or yard for surface, the cubic foot for solidity, the gallon for liquids, and the pound for weights; the pound avoirdupois being used in most commercial transactions and the pound troy "for weighing gold and silver and precious stones, except diamonds."

Unrestricted power "to fix the standard of weights and measures" is vested in congress, but until recently congress had not enacted any general regulations in execution of that power. Regulations upon the subject existed in the states at the adoption of the constitution, the same as those which prevailed at that time in the parent country, and Judge Story says that the understanding was that those regulations remained in full force, and that the states, until congress should legislate, possessed the power to fix their own weights and measures.