30 UNITED STATES N'ATIONAL MUSEUM 



The window openings are 11 feet 6 inches wide, the piers, 7 feet 

 wide. In the wings the piers have pilasters 3 feet 8 inches wide, 

 projecting 13 inches, with their bases, caps and the entablature 

 treated architecturally in the Tuscan style. The thickness of these 

 piers, exclusive of the pilasters, is 3 feet 3 inches. In the ranges the 

 piers have simply 1-inch raised panels on their faces and, excluding 

 these, are 2 feet 8 inches thick. With the exception of a 1-foot 10-inch 

 course immediately above the sill course, all stones between the sill 

 course and the entablature are laid in 2-foot courses. The thickness 

 of the stone is about 1 foot where a greater dimension is not required. 



The entablature, which is uniform in design and size throughout 

 its entire length, is T feet 8 inches high and its greatest projection 

 is 3 feet 4 inches beyond the face of the two stories below. Of the 

 four courses comprising the construction, the lower one, 3 feet ^ inch 

 high, forms a rather prominent architrave, while the next above, 



I foot 8^ inches high, embodies a relatively unimportant frieze and 

 the bed molding of the modillioned cornice. The modillions are 2 

 feet wide, occupy an 8f-inch course and are spaced about 3 feet 8 

 inches on centers. The upper and most important stone of the cornice 

 and of the entire entablature is 2 feet 2f inches high. 



Third story. — The stone work of the third story of the east and 

 west wings, extending 15 feet 5^ inches above the main cornice, 

 includes a secondary cornice, 2 feet 4 inches high with a projection 

 of 2 feet, and a parapet. In elevation the vertical lines of the first 

 and second stories are recalled with short pilasters, 3 feet wide and 

 10 inches in relief, having a paneled face, while the piers are 8 feet 

 1^ inches wide. Each window opening of the main stories is repre- 

 sented in the third story by double openings, 4 feet wide by 6 feet 

 8 inches high, the companion windows being separated by stone 

 muUions, 2 feet 4| inches wide. The thickness of the piers is 2 feet 



II inches, but a stone trim around the windows, projecting 4 inches, 

 makes the total reveal 3 feet 3 inches. The top of the stone sill is 

 1 foot 7 inches above the top of the main cornice and 2 feet 2^ inches 

 above the finished floor level, which is 3^ inches higher than was 

 originally planned, these figures being also the same for the ranges. 



In the ranges there is a 5-foot parapet wall between the dormer 

 windows, resting on the main cornice and succeeded by a slate- 

 covered mansard roof. The windows are placed one above each of 

 the larger window openings of the main stories, and measure in the 

 clear 5 feet wide by 7 feet high. The architrave around them carries 

 down to the sill course, and all of the windows have pediment heads, 

 alternating between the square and segmental. The brackets at the 

 sides of the architraves, supporting these pediments, rest upon the 

 parapet wall. 



