Design and calibration of a portable three component seismometer
By: by George A. Irland ...
Contributors: Lee, Frederick William, 1889-
Published: 1935
Place of publication: [Washington
Language: eng
Number of pages: 48
Subjects: Seismometer; Oscillators, Electric; Vibration
Notes: Thesis (DR. ENG.)--Johns Hopkins University, 1932.
Cover title.
Vita.
U.S. Bureau of Mines Technical papers 518 and 556, with cover having thesis note, "Errata" (p. 2) and "Vita" (p. 3)
Table of contents: title: Construction of master mechanical oscillator for testing seismic recorders and other allied apparatus, by F.W. Lee and G.A. Irland. 1932.; title: A study of some seismometers, by G.A. Irland. 1934.