The posts of Detroit and Mackinac, having been originally intended by the governments which established and held them, as mere depôts for the commerce with the Indians, very small cessions of land around were obtained or asked from the native proprietors, and these posts depended for protection on the strength of their garrisons. The principle of our government leading us to the employment of such moderate garrisons in time of peace, as may merely take care of the post, and to a reliance on the neighboring militia for its support in the first moments of war, I have thought it would be important to obtain from the Indians such a cession of the neighborhood of these posts as might maintain a militia proportioned to this object; and I have particularly contemplated, with this view, the acquisition of the eastern moiety of the peninsula between the lakes Huron, Michigan, and Erie, extending it to the Connecticut reserve, so soon as it could be effected with the perfect good will of the natives. By a treaty concluded at Detroit, on the 17th of November last, with the Ottawas, Chippewas, Wyandots, and Pottawatomies, so much of this country has been obtained as extends from about Saguina bay southwardly to the Miami of the lakes, supposed to contain upward of five millions of acres, with a prospect of obtaining, for the present, a breadth of two miles for a communication from the Miami to the Connecticut reserve. The Senate having advised and consented to the ratification of this treaty, I now lay it before both houses of Congress for the exercise of their constitutional powers as to the means of fulfilling it. SPECIAL MESSAGE.--FEBRUARY 2, 1808. _To the Senate and House of Representatives of the United States_:-- Having received an official communication of certain orders of the British government against the maritime rights of neutrals, bearing date of the 11th of November, 1807, I transmitted to Congress, as a further proof of the increasing dangers to our navigation and commerce which led to the provident measures of the present session, laying an embargo on our own vessels. SPECIAL MESSAGE.--FEBRUARY 4, 1808. _To the House of Representatives of the United States_:--