U. S. NATIONAL MUSEUM 



PROCEEDINGS, VOL. 77, ART. 5 PL. 20 



A. Houses of the Northeast Group Had been demolished by Huge 

 Blocks of Fallen sandstone as This View, from Room 81, plainly 

 Shows 



B. In the Foreground, the Restored Walk Fronting Rooms 78-81 at 

 the Lower Left, the side Walls of Rooms 76-77 



