Latitude observations with photographic zenith tube at Gaithersburg, Md

An edition of Latitude observations with photographic zenith tube at Gaithersburg, Md (1915)

Latitude observations with photographic zenith tube at Gaithersburg, Md.

By Ross, Frank E.

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Publish Date

1915

Publisher

Govt. print. off.

Language

eng

Pages

127

Description:

subjects: Geodesy, Latitude variation

Places: United States