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too small to measure with any great accuracy.

Index of places (from back, detail)
Charles D(illon). Perrine (1867-1951 *), Assistant astronomer in charge of earthquake observations at the Lick Observatory [Mount Hamilton]. Earthquakes in California in 1895. USGS Bulletin No 147 (1896)
University of Illinois-Urbana copy, no date of digitization

epigram (re: waves) ex entry for December 28, 1895, p 22

3 January 2015

dots; index; index locorum; periods; Lick Observatory
C. D. Perrine