122 UNITED STATES NATIONAL MUSEUM 



DIVISION OF SPACE BY STORIES 



Ground story. 



Square feet 

 North entrance : Vestibule, 763 square feet ; lobby, 4,209 



square feet 4, 972 



Exhibition space: Central hall or foyer in north wing, 7,790 

 square feet ; four rooms on sides of north wing, 4,616 square 

 feet 12, 406 



Laboratories and storage of collections: West wing, 16,366 

 square feet; west range, 16,260 square feet; east range, 

 11,278 square feet 43, 904 



Meetings and lectures: Auditorium, 5,401 square feet; audi- 

 torium lobby, 1,163 square feet; two rooms on west side of 



north wing, used for small meetings, 1,710 square feet 8, 274 



Library, east range 3,917 



Mechanical plant: Boilers, machinery, shops, coal bunker and 

 driveway for delivery of coal, east wing, 15,885 square feet ; 

 ice machine and ventilating apparatus, south pavilion, 662 

 square feet; battery room communicating with north en- 

 trance lobby, 142 square feet 16, 689 



Offices of buildings and labor, east range 1, 512 



Offices of shipping, registration, property and supplies, with 



wagon entrance, landing platform, and corridors, west wing__ 7, 555 

 Construction and repair shops for furniture and building, east 



wing 6, 284 



Storage space for property, supplies and mechanical appliances, 

 east wing, 1,764 square feet; corridor on east, south, and 

 west sides of south pavilion, 3,182 square feet; vault under 



south approach, 2,225 square feet 7,171 



Headquarters of the watch, communicating with the north 



entrance lobby 880 \ 



Telephone exchange, west range 447 ' 



Comfort, toilet, and locker rooms 4,128 



Housekeeping rooms, south pavilion 215 



Stairs, elevators, and elevator machinery 2,819 



Total area of ground story, including vault under south 



approach 121, 173 



First story. 



Exhibition space: East and west wings, each 24,995 square 

 feet; north wing, 22,862 square feet; east and west ranges, 

 each 16,707 square feet ; south pavilion, 9,873 square feet— 116, 139 



Small rooms: One in north wing, 357 square feet; four in 

 south pavilion, 556 square feet 913 



Stairs and elevators 2, 428 



Total area of first story 119,480 



Second story. 



Exhibition space: East and west wings, each 15,927 square 

 feet ; north wing, 13,760 square feet ; east and west ranges, 

 each 16,707 square feet; south pavilion gallery, 3,875 square 

 feet 82,903 



