But, if it be admitted that the word territory as used means land, and nothing but land, the power of Congress to organize a temporary Government is clear. It has power to make all needful regulations respecting the public lands, and the extent of those "needful regulations" depends upon the direction of Congress, where the means are appropriate to the end, and do not conflict with any of the prohibitions of the Constitution. If a temporary Government be deemed needful, necessary, requisite, or is wanted, Congress has power to establish it. This court says, in McCulloch _v._ The State of Maryland, (4 Wheat., 316,) "If a certain means to carry into effect any of the powers expressly given by the Constitution to the Government of the Union be an appropriate measure, not prohibited by the Constitution, the degree of its necessity is a question of legislative discretion, not of judicial cognizance." The power to establish post offices and post roads gives power to Congress to make contracts for the transportation of the mail, and to punish all who commit depredations upon it in its transit, or at its places of distribution. Congress has power to regulate commerce, and, in the exercise of its discretion, to lay an embargo, which suspends commerce; so, under the same power, harbors, lighthouses, breakwaters, &c., are constructed. Did Chief Justice Marshall, in saying that Congress governed a Territory, by exercising the combined powers of the Federal and State Governments, refer to unlimited discretion? A Government which can make white men slaves? Surely, such a remark in the argument must have been inadvertently uttered. On the contrary, there is no power in the Constitution by which Congress can make either white or black men slaves. In organizing the Government of a Territory, Congress is limited to means appropriate to the attainment of the constitutional object. No powers can be exercised which are prohibited by the Constitution, or which are contrary to its spirit; so that, whether the object may be the protection of the persons and property of purchasers of the public lands, or of communities who have been annexed to the Union by conquest or purchase, they are initiatory to the establishment of State Governments, and no more power can be claimed or exercised than is necessary to the attainment of the end. This is the limitation of all the Federal powers. But Congress has no power to regulate the internal concerns of a State, as of a Territory; consequently, in providing for the Government of a Territory, to some extent, the combined powers of the Federal and State Governments are necessarily exercised.