U. S. GEOLOGICAL SURVEY 
BULLETIN NO. 324- PL. XX 
A. EARTHQUAKE EFFECT ON STRUCTURE OF REENFORCED CONCRETE OF POOR QUALITY. 
Cyclorama, Strawberry Hill, Golden Gate Park, San Francisco. Photograph by Richard L. Humphrey. 
/;. EFFECT OF EARTHQUAKE ON ADJACENT BUILDINGS OF DISSIMILAR TYPE AND 
CONSTRUCTION. 
Old Mission Dolores, San Francisco, undamaged. Tower of new church adjoining was so badly damaged 
that it had to be taken down. Photograph by Richard L. Humphrey. 
