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Announcement of the opening of the San Juan Geophysical Observatory

Description

Announcement of the opening of the San Juan Geophysical Observatory. This wasa new observatory as the C&GS; had operated an observatory in Puerto Ricosince 1903.

Credit

Family of Captain Miller J. Tonkel, NOAA Corps

Display Date

1965

Collection

Historic Coast & Geodetic Survey

Keywords

Coast and Geodetic Survey
Geophysics Geomagnetism