NATURAL HISTORY BUILDING 119 



been considered necessary to subdivide the sections into rooms, and 

 only four enclosures, all with macite walls, have been built. One is 

 in the north wing and three are in the west wing. Otherwise the 

 storage cases and racks are for the most part compactly arranged in 

 the bays formed b}'- the truss members, and are reached from the 

 thoroughfares along the light wells. 



Each of the departments has been given the entire occupancy of a 

 wing, the eastern being assigned to geology, the northern to anthro- 

 pology, and the western to biology. 



INTERIOR MEASUREMENTS OF THE BUILDING 



The dimensions given on the following pages are based mainly on 

 actual measurements of the finished building and are exclusive of all 

 structural walls whatever their position. The size of each wing and 

 range, for instance, has been calculated separately and in the clear 

 between its side walls and its end walls, and the same rule has been 

 followed in accounting severally for the measurements of the three 

 sections into which the ground story of the north wing has been 

 subdivided by the structural walls near its northern end, namely, 

 the vestibule, lobby and main body of the wing, and also for the 

 dimensions of the many enclosures contained within the structural 

 walls of the south pavilion. That is to say, the figures recorded are 

 designed to set forth the amount of available space furnished by the 

 building in whole or in part, which is, however, strictly true only in 

 so far as the space is not subdivided by subsidiary screen and parti- 

 tion walls, for which as for the many piers occurring in the several 

 stories it has manifestly been impracticable to make allowance. 



As the inner surfaces of the outer and court walls were continued 

 in the same vertical plane from the level of the ground floor to the 

 eaves in the wings and to the third floor level in the ranges, the gen- 

 eral horizontal dimensions would be identical in all stories, except 

 the attics or lofts of the ranges, but for the fact that the addition of 

 certain furring has reduced the width of the ranges in the third 

 story, and the plaster work elsewhere has produced slight variations. 

 Allowing for these differences, it may be said that the east and west 

 wings have an average length of 216 feet 1 inch in all stories except 

 the attic, which is unplastered and measures 216 feet 2 inches long. 

 The length of the north wing through the center is 205 feet 2 inches 

 in the first, second and third stories, and 205 feet 3 inches in the 

 attic story, but in all stories except the attic the length is increased at 

 the sides by the depth of the lateral projections of the north pavilion, 

 which is 5 feet 11 inches. 



None of the wings has a uniform width throughout its entire 

 length, but all average 116 feet 2 inches wide at the outer end below 

 the attic, in which this dimension is 2 inches greater. An offset of 



