UNITED STATES CAPITOL-EXTENSION AND COMPLETION Principal floor plan, scheme dated February 20, 1865, suggested by Thomas U. Walter, Architect of the Capitol. UNITED STATES CAPITOL EXTENSION AND COMPLETION Principal floor plan, scheme A, suggested in report of December 27, 1904, by Carrere and Hastings, Consulting Architects. UNITED STATES CAPITOL-EXTENSION AND COMPLETION Principal floor plan, scheme B, suggested in report of December 27, 1904, by Carrere and Hastings, Consulting Architects. Principal floor plan. Modification of Carrere and Hastings' scheme B, proposed by Architect of the Capitol, January 22, 1935. UNITED STATES CAPITOL-EXTENSION AND COMPLETION |