This content is PDF only. Please click on the PDF icon to access.
You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
W. F. Sprengnether; Horizontal- and vertical-component seismographs. Bulletin of the Seismological Society of America 1947;; 37 (2): 101–105. doi: https://doi.org/10.1785/BSSA0370020101
Download citation file: