As the fitting up of the Joiners work in the Office story of the S Wing of the Capitol is required to be pushed on as fast as possible, it becomes necessary for me to know, what sort of materials the floors are intended to be of.—I have understood from Mr. Latrobe, that they were to be of Tile, but have no knowledge of any being provided for that purpose—Should they ultimately be of Wood, it is requisite that so much of them as is sufficient for the recesses of all the windows be immediately prepared and laid down, as the designs of the dressings for the windows are such as require so much at least, in order to the fitting up the backs, Elbows, Architraves Jamnbs &c &c before the grounds can be said to receive the plaistering.—having no specific instructions on this head, I wait to know your pleasure, and am

Sir Your Obedient Servt. for BH Latrobe