Ground-plan of the crystal palace. A. Principal entrance. B. West entrance. C. East entrance. D. Refreshment courts. E. Entrance. F. Gentlemens' ante-rooms. G. Ladies' ante-rooms. H. Pay place. I. Accountant. K. Exits. L. Ante-rooms. M. Committee waiting-room. N. Royal commission. O. Clerks. P. Stairs. Q. Engine house. Date: 1851.
