Washington, December 18, 1863.

GENTLEMEN,—It is not in my power to be present at your festival in honor of the Proclamation of Emancipation. But, wherever I may be, I shall celebrate it in my heart.

That Proclamation was the key to open the gates of victory and peace. Without it victory would have been doubtful, and peace impossible. And now both are certain.

Accept my best wishes, and believe me, Gentlemen,

Faithfully yours,

Charles Sumner.

The Committee, &c.