In inviting the attention of Congress to the subject of internal improvements upon a view thus enlarged it is not my design to recommend the equipment of an expedition for circumnavigating the globe for purposes of scientific research and inquiry. We have objects of useful investigation nearer home, and to which our cares may be more beneficially applied. The interior of our own territories has yet been very imperfectly explored. Our coasts along many degrees of latitude upon the shores of the Pacific Ocean, though much frequented by our spirited commercial navigators, have been barely visited by our public ships. The River of the West, first fully discovered and navigated by a countryman of our own, still bears the name of the ship in which he ascended its waters, and claims the protection of our armed national flag at its mouth. With the establishment of a military post there or at some other point of that coast, recommended by my predecessor and already matured in the deliberations of the last Congress, I would suggest the expediency of connecting the equipment of a public ship for the exploration of the whole northwest coast of this continent. The establishment of an uniform standard of weights and measures was one of the specific objects contemplated in the formation of our Constitution, and to fix that standard was one of the powers delegated by express terms in that instrument to Congress. The Governments of Great Britain and France have scarcely ceased to be occupied with inquiries and speculations on the same subject since the existence of our Constitution, and with them it has expanded into profound, laborious, and expensive researches into the figure of the earth and the comparative length of the pendulum vibrating seconds in various latitudes from the equator to the pole. These researches have resulted in the composition and publication of several works highly interesting to the cause of science. The experiments are yet in the process of performance. Some of them have recently been made on our own shores, within the walls of one of our own colleges, and partly by one of our own fellow-citizens. It would be honorable to our country if the sequel of the same experiments should be countenanced by the patronage of our Government, as they have hitherto been by those of France and Britain.