NATUKAL HISTORY BUILDING 31 



North paviUon. — The north pavilion, formed by the extension of 

 the north wing beyond the face of the ranges, although not attaining 

 the architectural or structural importance of the front of the south 

 pavilion has been treated in a manner consistent with its prominence 

 as containing the secondary entrance to the building. Its projection 

 in the ground story is 23 feet 11 inches and its width 122 feet 9f 

 inches (reduced to 121 feet 10 inches in the succeeding stories), the 

 central part to a width of 64 feet 10^ inches being slightly recessed 

 and divided into three complete 18^-foot bays with a narrow bay on 

 each side. The flanking pavilions at the sides of this recess measure 

 28 feet llf inches wide. 



Other than changes in the detail, the central part of the pavilion 

 in particular conforms closely to the architectural treatment of the 

 east and west wings. The base courses, rusticated lower story, water 

 table and entablature, features common to both the wings and ranges, 

 extend across the entire front. The walls of the flanking pavilions 

 are pierced in the several stories, on both the front and return walls, 

 by relatively small windows, but in the three center bays the large 

 openings characteristic of the wings and ranges are repeated, al- 

 though in the ground story flat lintel-headed door openings replace 

 the segmental-headed window openings of the other parts of the 

 building. Each of these three entrances, one in each bay, is 15 feet 

 4f inches high by 8 feet 6 inches wide and is framed in part by a 

 molded architrave. The lintel stones and the outer face of each 

 alternate jamb stone are molded, the intervening stones being pro- 

 longations of the picked surface stones from the pier walls. 



The window openings of the first and second stories, beginning 

 about 1 foot above the finished first floor level, are 34 feet 9 inches 

 high and 11 feet 6 inches wide. The sill and base courses of the 

 typical wing and range windows are recalled in front of these open- 

 ings by balustrades, 3 feet 11 inches high, built between the plinths 

 of engaged Tuscan columns which decorate the intervening piers. 

 These columns are 4 feet in diameter below, and 3 feet 6 inches at 

 the necking; the lateral ones are recalled by pilasters against the 

 slightly projecting walls of the minor pavilions. The double win- 

 dows of the third story are 7 feet 2 inches high by 4 feet 4| inches 

 wide. The piers are 7 feet 10 inches, and the mullions 1 foot 11 

 inches, wide. The third story stone work is 16 feet 6 inches high 

 from the top of the main cornice and finishes with an individual 

 cornice and low parapet wall. 



The vestibule floor is 1 foot 9 inches above the grade of the driveway 

 leading to the northern entrance. The upper step occurs between the 

 jambs of the three openings and has a 6-inch rise. Outside of the 

 walls there are two risers, the lower 9 the upper 6 inches high. The 



