And ye men of the other Southern States, members of the Old Thirteen; yes, members of the Old Thirteen; that always touches my regard and my sympathies; North Carolina, Georgia, South Carolina! What page in your history, or in the history of any one of you, is brighter than those which have been recorded since the Union was formed? Or through what period has your prosperity been greater, or your peace and happiness better secured? What names even has South Carolina, now so much dissatisfied, what names has she of which her intelligent sons are more proud than those which have been connected with the government of the United States? In Revolutionary times, and in the earliest days of this Constitution, there was no State more honored, or more deserving of honor. Where is she now? And what a fall is there, my countrymen! But I leave her to her own reflections, commending to her, with all my heart, the due consideration of her own example in times now gone by.

Fellow-citizens, there are some diseases of the mind as well as of the body, diseases of communities as well as diseases of individuals, that must be left to their own cure; at least it is wise to leave them so until the last critical moment shall arrive.

I hope it is not irreverent, and certainly it is not intended as reproach, when I say, that I know no stronger expression in our language than that which describes the restoration of the wayward son,—"he came to himself." He had broken away from all the ties of love, family, and friendship. He had forsaken every thing which he had once regarded in his father's house. He had forsworn his natural sympathies, affections, and habits, and taken his journey into a far country. He had gone away from himself and out of himself. But misfortunes overtook him, and famine threatened him with starvation and death. No entreaties from home followed him to beckon him back; no admonition from others warned him of his fate. But the hour of reflection had come, and nature and conscience wrought within him, until at length "he came to himself."

And now, ye men of the new States of the South! You are not of the original thirteen. The battle had been fought and won, the Revolution achieved, and the Constitution established, before your States had any existence as States. You came to a prepared banquet, and had seats assigned you at table just as honorable as those which were filled by older guests. You have been and are singularly prosperous; and if any one should deny this, you would at once contradict his assertion. You have bought vast quantities of choice and excellent land at the lowest price; and if the public domain has not been lavished upon you, you yourself will admit that it has been appropriated to your own uses by a very liberal hand. And yet in some of these States, not in all, persons are found in favor of a dissolution of the Union, or of secession from it. Such opinions are expressed even where the general prosperity of the community has been the most rapidly advanced. In the flourishing and interesting State of Mississippi, for example, there is a large party which insists that her grievances are intolerable, that the whole body politic is in a state of suffering; and all along, and through her whole extent on the Mississippi, a loud cry rings that her only remedy is "Secession," "Secession." Now, Gentlemen, what infliction does the State of Mississippi suffer under? What oppression prostrates her strength or destroys her happiness? Before we can judge of the proper remedy, we must know something of the disease; and, for my part, I confess that the real evil existing in the case appears to me to be a certain inquietude or uneasiness growing out of a high degree of prosperity and consciousness of wealth and power, which sometimes lead men to be ready for changes, and to push on unreasonably to still higher elevation. If this be the truth of the matter, her political doctors are about right. If the complaint spring from over-wrought prosperity, for that disease I have no doubt that secession would prove a sovereign remedy.

But I return to the leading topic on which I was engaged. In the department of invention there have been wonderful applications of science to arts within the last sixty years. The spacious hall of the Patent Office is at once the repository and proof of American inventive art and genius. Their results are seen in the numerous improvements by which human labor is abridged.

Without going into details, it may be sufficient to say, that many of the applications of steam to locomotion and manufactures, of electricity and magnetism to the production of mechanical motion, the electrical telegraph, the registration of astronomical phenomena, the art of multiplying engravings, the introduction and improvement among us of all the important inventions of the Old World, are striking indications of the progress of this country in the useful arts. The net-work of railroads and telegraphic lines by which this vast country is reticulated have not only developed its resources, but united emphatically, in metallic bands, all parts of the Union. The hydraulic works of New York, Philadelphia, and Boston surpass in extent and importance those of ancient Rome.

But we have not confined our attention to the immediate application of science to the useful arts. We have entered the field of original research, and have enlarged the bounds of scientific knowledge.

Sixty years ago, besides the brilliant discoveries of Franklin in electricity, scarcely any thing had been done among us in the way of original discovery. Our men of science were content with repeating the experiments and diffusing a knowledge of the discoveries of the learned of the Old World, without attempting to add a single new fact or principle to the existing stock. Within the last twenty-five or thirty years a remarkable improvement has taken place in this respect. Our natural history has been explored in all its branches; our geology has been investigated with results of the highest interest to practical and theoretical science. Discoveries have been made in pure chemistry and electricity, which have received the approbation of the world. The advance which has been made in meteorology in this country, within the last twenty years, is equal to that made during the same period in all the world besides.

In 1793 there was not in the United States an instrument with which a good observation of the heavenly bodies could be made. There are now instruments at Washington, Cambridge, and Cincinnati equal to those at the best European observatories, and the original discoveries in astronomy within the last five years, in this country, are among the most brilliant of the age. I can hardly refrain from saying, in this connection, that the "Celestial Mechanics" of La Place has been translated and commented upon by Bowditch.

Our knowledge of the geography and topography of the American continent has been rapidly extended by the labor and science of the officers of the United States army, and discoveries of much interest in distant seas have resulted from the enterprise of the navy.