The work is divided into several parts.
The First Volume contains a Life of Washington, written by Mr. Sparks.
The Second Volume, entitled Part First, contains the Official and Private Letters of Washington, prior to the American Revolution, (from the 9th of March, 1754, to the 31st of May, 1775). The official letters relate to the war of 1754-1758, between France and England, for the possession of the territories lying west of the English colonies.
The Third, Fourth, Fifth, Sixth, Seventh, and Eighth Volumes (being the Second Part) comprise the Correspondence and the various papers relating to the American Revolution and the War of Independence, (from the 16th of June, 1775, to the 23d of December, 1783).
The Ninth Volume (being the Third Fart) is composed of the Private Letters written by Washington from the end of 1783 to the spring of 1789, in the interval between his return to Mount Vernon, after the peace of Versailles, and his elevation to the Presidency of the United States, (from the 28th of December, 1783, to the 14th of April, 1789).
The Tenth and Eleventh Volumes (being the Fourth Part) comprise the Official and Private Correspondence of Washington from his elevation to the Presidency to the close of his life, (from the 5th of May, 1789, to the 12th of December, 1799).
The Twelfth Volume (being the Fifth Part), contains the Documents and Messages addressed by Washington to Congress, as President of the United States, and also his Proclamations and Addresses to the American people in general, or to particular classes of citizens.
Each volume is terminated by an Appendix, in which the Editor has collected a variety of historical documents of great interest, and, generally speaking, hitherto unpublished, which illustrate the principal events of the period, and the most important parts of the life and character of Washington.