Santa Clara College (Calif.); Seismological stations; Earthquakes
the Vertical Component of the Weichert Seismograph circa 1910. Photo taken in the "Octogon-shaped building" shortly after the installation of the Weichert, circa 1910.
Vertical Component of the Weichart Seismograph c.1910. Photo taken in the "Octagon-shaped Building" shortly after the installation of the Weichert, probably in 1910.