Wc extract from the ablo and inter esting report of Thomas U. Walken LL. D., United States Architect of the Capítol extensión, the following description of the bronze door designed by the Michigan sculptor, Mr. Randolph Rogers, for that building: " The bronze door ordcred of Mr. Randolph Hogers was coinpleted moro than a year ago, aud remaios at Munich, awaiting the orders of the government. The sum of $164,29 has been paid on ac count of it, aud it will require about $12,000 to pay the balance due upon it, includiug interest, storage, aud other expenses, to tb is date. " This door is composed entirely of bronze, back and front, and is said to be the ouly work of the kind in the world which is thus constructod ; its weight is 20,000 lbs. The leading subject of its embellishmonts is the history of Columbus. It has two valves, with four pane' i in each valvo, and oue semicircular panel over the trausoin. The first panel (beginning at the bottom of the loft hand valve) contains a 6cene representing Columbus boforo the eouucil of Salamanca; the second panel, bis leaving the convent of La Rábida; the third panel, his audi once before Ferdinand and Fsabella; the fourth panel, his oeparture from Palos; the semi-cireular panel over the transom presents his first landing at San Salvador; the fifth panel his firat encounter with the Indians on the Islaud of Hispaniola ; the sixth panel, his triumphal entry into Barcelona; the scène in the seventh panel represents him a prisoner in chains about to be sent back to Spain ; and the cighth panel coutains a sf 311e rüpresenting his death. There are sixteen small niches in the border or frame around the door, in whiuh are sixteen statuettes representing distinguished cotemporaries of Colunibus, and botween the panels are heads representing historians who have written on his voyages from his own time down to the present day, onding with Irving and Prescott. Crowning tho door is a bust of Columbus. The ornamonts are chiefly emblematic of conquest and navigation." This door was oriijinally intended to bo put up between the old llall of Kepresentatives ai;d the corridor leading to the South Vfing. Mr. Walter, however, recommends that it be placed in the eastern front of the center building, and be made to constitute the principal entrance to the Capítol. In this situatiou its elabórate decorations would be seen to advautage, having the benefit of light and shado, and there would be nothing to prevent its occasionally remaining closed.