Bui. 801, U. S. Dept. of Agriculture. 



Plate XX. 



Fig. I. — Interior of a. Reinforced Concrete Building Undamaged After 

 THE Contents. WAS Destroyed by Fire. 



Fig. 2.— a Hollow-Tile Panel Wall after Fire. 



Note that while the tile is badly damaged the ceiling and floor planks are merely charred. 



