Subject ASC0001h4g
The Quarterly journal of the Geological Society of London.
v.60 (1904), Page 235 (1904)
Smithsonian Libraries
BHL Page 35259683
Keywords
earthquake record graph seismograph birmingham 1903 Omori horozontal pendulum Earthquake Omori Horizontal Pendulum Birmingham June 19th June 19 Omori horizontal pendulum earthquake chart