In communicating this result I can not resist the obligation which I feel to suggest to Congress the propriety of recommending to the States the adoption of an amendment to the Constitution which shall give to Congress the right in question. In cases of doubtful construction, especially of such vital interest, it comports with the nature and origin of our institutions, and will contribute much to preserve them, to apply to our constituents for an explicit grant of the power. We may confidently rely that if it appears to their satisfaction that the power is necessary, it will always be granted. In this case I am happy to observe that experience has afforded the most ample proof of its utility, and that the benign spirit of conciliation and harmony which now manifests itself throughout our Union promises to such a recommendation the most prompt and favorable result. I think proper to suggest also, in case this measure is adopted, that it be recommended to the States to include in the amendment sought a right in Congress to institute likewise seminaries of learning, for the all-important purpose of diffusing knowledge among our fellow-citizens throughout the United States. Our manufactories will require the continued attention of Congress. The capital employed in them is considerable, and the knowledge acquired in the machinery and fabric of all the most useful manufactures is of great value. Their preservation, which depends on due encouragement, is connected with the high interests of the nation. Although the progress of the public buildings has been as favorable as circumstances have permitted, it is to be regretted that the Capitol is not yet in a state to receive you. There is good cause to presume that the two wings, the only parts as yet commenced, will be prepared for that purpose at the next session. The time seems now to have arrived when this subject may be deemed worthy the attention of Congress on a scale adequate to national purposes. The completion of the middle building will be necessary to the convenient accommodation of Congress, of the committees, and various offices belonging to it. It is evident that the other public buildings are altogether insufficient for the accommodation of the several Executive Departments, some of whom are much crowded and even subjected to the necessity of obtaining it in private buildings at some distance from the head of the Department, and with inconvenience to the management of the public business.