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pl23_theb1137.jpg

After making contact, the forward end of tape is moved ahead

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Description

After making contact, the forward end of tape is moved ahead.Note lantern and flashlight - these operations were conducted at night.Relatively constant night temperatures minimized expansion of tape.Fig. No. 12, Appendix No. 3, Report of Superintendent ... 1901, p. 258

Display Date

1901

Collection

Historic Coast & Geodetic Survey

Keywords

Geodesy

Base Line