Under this wise system the improvement of harbors and rivers was commenced, or rather continued, from the organization of the Government under the present Constitution.  Many acts were passed by the several States levying duties of tonnage, and many were passed by Congress giving their consent to those acts.  Such acts have been passed by Massachusetts, Rhode Island, Pennsylvania, Maryland, Virginia, North Carolina, South Carolina, and Georgia, and have been sanctioned by the consent of Congress.  Without enumerating them all, it may be instructive to refer to some of them, as illustrative of the mode of improving harbors and rivers in the early periods of our Government, as to the constitutionality of which there can be no doubt.

In January, 1790, the State of Rhode Island passed a law levying a tonnage duty on vessels arriving in the port of Providence, “for the purpose of clearing and deepening the channel of Providence River and making the same more navigable.”

On the 2d of February, 1798, the State of Massachusetts passed a law levying a tonnage duty on all vessels, whether employed in the foreign or coasting trade, which might enter into the Kennebunk River, for the improvement of the same by “rendering the passage in and out of said river less difficult and dangerous.”

On the 1st of April, 1805, the State of Pennsylvania passed a law levying a tonnage duty on vessels, “to remove the obstructions to the navigation of the river Delaware below the city of Philadelphia.”

On the 23d of January, 1804, the State of Virginia passed a law levying a tonnage duty on vessels, “for improving the navigation of James River.”

On the 22d of February, 1826, the State of Virginia passed a law levying a tonnage duty on vessels, “for improving the navigation of James River from Warwick to Rocketts landing.”

On the 8th of December, 1824, the State of Virginia passed a law levying a tonnage duty on vessels, “for improving the navigation of Appomattox River from Pocahontas Bridge to Broadway.”

In November, 1821, the State of North Carolina passed a law levying a tonnage duty on vessels, “for the purpose of opening an inlet at the lower end of Albemarle Sound, near a place called Nags Head, and improving the navigation of said sound, with its branches;” and in November, 1828, an amendatory law was passed.

On the 21st of December, 1804, the State of South Carolina passed a law levying a tonnage duty, for the purpose of “building a marine hospital in the vicinity of Charleston,” and on the 17th of December, 1816, another law was passed by the legislature of that State for the “maintenance of a marine hospital.”

On the 10th of February, 1787, the State of Georgia passed a law levying a tonnage duty on all vessels entering into the port of Savannah, for the purpose of “clearing” the Savannah River of “wrecks and other obstructions” to the navigation.