In expending the appropriations made by the last Congress several cases have arisen in relation to works for the improvement of harbors which involve questions as to the right of soil and jurisdiction, and have threatened conflict between the authority of the State and General Governments. The right to construct a breakwater, jetty, or dam would seem necessarily to carry with it the power to protect and preserve such constructions. This can only be effectually done by having jurisdiction over the soil. But no clause of the Constitution is found on which to rest the claim of the United States to exercise jurisdiction over the soil of a State except that conferred by the eighth section of the first article of the Constitution. It is, then, submitted whether, in all cases where constructions are to be erected by the General Government, the right of soil should not first be obtained and legislative provision be made to cover all such cases. For the progress made in the construction of roads within the Territories, as provided for in the appropriations of the last Congress, I refer you to the report of the Secretary of War. There is one subject of a domestic nature which, from its intrinsic importance and the many interesting questions of future policy which it involves, can not fail to receive your early attention. I allude to the means of communication by which different parts of the wide expanse of our country are to be placed in closer connection for purposes both of defense and commercial intercourse, and more especially such as appertain to the communication of those great divisions of the Union which lie on the opposite sides of the Rocky Mountains. That the Government has not been unmindful of this heretofore is apparent from the aid it has afforded through appropriations for mail facilities and other purposes. But the general subject will now present itself under aspects more imposing and more purely national by reason of the surveys ordered by Congress, and now in the process of completion, for communication by railway across the continent, and wholly within the limits of the United States.