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THE PRIMARY STATIONS AT CHEYENNE, WYOMING TERRITORY, AND
COLORADO SPRINGS, COLORADO TERRITORY,

MADE DURING

The Years 1872 and 1873,

GEOGRAPHICAL AND GEOLOGICAL EXPLORATIONS AND SURVEYS WEST OF THE
ONE HUNDREDTH MERIDIAN.

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Signals for determination of longitude between Salt Lake City and Colorado Springs
Final results for longitude . .

Mean places of stars for 1873 used for determination of latitude

Observations for latitude

Computations for latitude

Discussion of probable error

Astronomical co-ordinates

Instructions for conducting observations, field-season of 1873

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