no IIAND-BOOK OP WASHINGTON THE EQUESTRIAN STATUE OF WASHINGTON. It is placed in the circle on Pennsylvania ave nue and 23d street. The statue is of bronze, elevated upon a stone pedestal, (another pedestal has been designed, with four concave faces, which are to contain some historical devices,) facing the cast, and presenting a side view on 23d street. It is colossal in size, being eleven feet if standing erect, and fifteen on horseback. This is a work of art executed by Mr. Mills, at a cost to the Government of $50,000, express ing with great truthfulness the high qualities of the patriot whom it commemorates at the crisis of the battle at Princeton. BOTANICAL OARDEN. In front of the western entrance of the Capi tol grounds is the Botanical arden. Git is a bo tanical treasury, in which the most rare plants arc to be found. The Green House is very beautiful, and transplants one apparently to tho midst of the tropics. The collection is gathered almost from all quarters of the globe. These arc all carefully arranged, and opened to the public for general inspection.