HON. ALBERT GALLATIN, LL. D., PRESIDENT OF THE N. Y. HISTORICAL SOCIETY, FORMERLY ONE OF THE COMMISSIONERS UNDER THE TREATY OF GHENT, TOGETHER WITH 7 A SPEECH ON THE SAME SUBJECT, BY THE HON. DANIEL WEBSTER, LL. D., SECRETARY OF STATE, &c. &c.; DELIVERED AT A SPECIAL MEETING OF THE NEW-YORK HISTORICAL SOCIETY, APRIL 15TH, 1843. ILLUSTRATED BY A COPY OF THE "JAY MAP.” PRELIMINARY NOTICE. A SPECIAL MEETING of the New-York Historical Society took place at the Society's Rooms in the University of the City of New-York, on the 15th ultimo, for the purpose of receiving a communication from the Hon. ALBERT GALLATIN, President of the Society, on the subject of the North-Eastern Boundary of the United States, in connexion with a Map found amongst the papers of the late JOHN JAY, one of the American Commissioners for negotiating the treaty with Great Britain in 1783. The meeting was honored by the attendance of the Hon. DANIEL WEBSTER, Secretary of State, who had been invited to be present on this occasion. In consequence of the unusual interest excited in the community by the agitation of the subject to be brought before the Society, and the exalted reputation of the venerable President, arrangements were made for an early adjournment of the meeting to the large Chapel of the University, in order to accommodate persons introduced by the members. At eight o'clock P. M., Mr. Vice-President LAWRENCE, (formerly Secretary of Legation under Mr. GALLATIN, and subsequently Chargé d'Affaires of the United States to Great Britain,) being in the chair, the Society adjourned to the Chapel, when the following memoir was read by Mr. GALLATIN, assisted by JOHN JAY, Esq., one of the Secretaries. Mr. GALLATIN was followed by Mr. LAWRENCE, in a few remarks, designed to call up Mr. WEBSTER, who responded to the call in a speech that derived the highest interest from the unrivalled ability of the |