Bulletin No. 324 Series R, Structural Materials, 1 
DEPAKTMENT OF THE INTERIOR 
UNITED STATES GEOLOGICAL SURVEY 
GEORGE OTIS SMITH, Director 
THE 
SAN FRANCISCO EARTHQUAKE AND FIRE 
OF 
APRIL 18, 1906 
AND THEIR EFFECTS ON STRUCTURES AND 
STRUCTURAL MATERIALS 
REPORTS BY 
GROVE KARL GILBERT, RICHARD LEWIS HUMPHREY, 
JOHN STEPHEN SEWELL, and FRANK SOULE 
WITH PREFACE BY 
JOSEPH AUSTIN HOLMES 
In Charge of Technologic Branch 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1907 
