44 UNITED STATES NATIONAL MUSEUM 



The openings of the three entrance doors are 6 feet wide by 10 

 feet high and have semicircular heads. Two of the doors are op- 

 posite the tower stairs, while the middle one centers on the north 

 and south axis of the building. The doors are of walnut, in two 

 leaves, each with a single panel and circular glazed peephole with 

 thin cover disk. They are 7 feet high, the upper part of the openings 

 being filled in with a double-paneled walnut transom. The jambs 

 are also of walnut, but the trims are of plaster with marble plinths. 

 The space directly inside of the middle door has been assigned to 

 the projection lantern. 



Auditorium' lohhy. — The architectural treatment of the auditorium 

 lobby, which is 12 feet 3f inches wide, consists principally of pilas- 

 ters 2 feet 6 inches wide spaced equidistant at the sides of the 

 entrances to the auditorium, two on each side of the middle door 

 and one on each side of the diagonally placed doors, the same being 

 repeated on the opposite wall of the lobby. With the exception of 

 the door architraves, which are of Keene's cement, and the floor bases, 

 the walls of the lobby are entirely finished in plaster. The spaces 

 between the pilasters where not occupied by door or stair openings are 

 paneled. The pilaster faces are also paneled and finish in a cap the 

 lines of which carry around the lobby as a cornice. The openings 

 from the lobby to the tower stairs are 13 feet S-J inches wide by 11 

 feet 1^ inches high, and have paneled jambs and soffits and plaster 

 brackets in the jambs. 



The ceiling, beginning immediately above the cornice, is arched 

 with glazed Guastavino ribbed tile, and the highest level of the soffit 

 of this arch is about 6 feet below the first floor level of the rotunda, 

 the space between the false ceiling and the floor construction being 

 utilized for ventilating purposes. Arches or ribs carrying the lines 

 of the pilasters across the ceiling from side to side divide the latter 

 into panels, in which the tiles are laid herringbone pattern. 



The wall, door reveal and pilaster bases are of pink Tennessee 

 marble and 12 inches high. The floor is mainly finished in terrazzo, 

 but the pilaster lines are recalled by border lines of pink Tennessee 

 and Sienna marbles enclosing panels of terrazzo. Border courses 

 of the pink Tennessee marble also occur against the walls. The door 

 openings at the two ends of the lobby are of the same shape and size 

 as those of the entrances to the auditorium, but instead of having a 

 transom at the top the double doors occupy the entire opening. These 

 doors are of paneled steel. 



PAVILION AND EOTUNDA ABOVE THE GROUND STORY 



General account. — The octagonal shape presented by the interior 

 of the pavilion in the ground story continues to the height of the top 

 of the attic story. The interior floor dimensions of the pavilion 



