Bui. 801, U. S. Dept. of Agriculture. 
Plate XXI 
Fig. I. — A Division Fire Wall which Checked the Spread of a Fire that 
Consumed a Compartment Filled with Cotton. 
Note that the timbers supported by the corbel fell without damage to the wall and that the buttresses 
prevented buckling of the wall from heat. 
Fig. 2. — A Long Wall Braced by Buttresses Against Buckling From 
Fire. 
Other notable features are the conductor head with scupper above, the lower end of the metal con- 
ductor discharging into cast-iron pipe, and the cast-iron door guards. 
