Construction oj the east wing to the third-floor level and the rotunda to the jourth-jhxn (attic) level; probably taken in 1907 

 from the tower of the Castle. In the middle distance is the Old Patent Office building, the current site of the National 

 Museum of American Art and the National Portrait Gallery. 



Aerial vieio of the new 

 National Museum looking 

 north-northwest; the farmers' 

 market is on the north side of 

 B Street and there is no 

 construction for the Federal 

 Triangle of governnient 

 buildings. The projections on 

 the south side of each court- 

 yard house the freight 

 elevators, which were run by 

 direct electric current 

 until the 1960s. 



Building the Building 



33 



