Box 2

Scope and Contents Note: first entry in book is dated July 19, 1875, however, later entries beginning on p. 4 are dated from June 12, 1875, at Camp 4 on the Huerfano River, to Nov. 16, 1875, at Camp 85 on the Arkansas River. Odometer and sextant observations.

Scope and Contents June 15, 1875, through Nov. 17, 1875. Note: following the Nov. 17 entry there are seven pages, 82-88, dated in October 1875. Odometer and sextant observations.

Scope and Content From the Collection: This collection contains data for all of the states within the survey area, with the exception of Idaho and Montana. There are 53 items in the collection, all of them bound volumes of survey observations. Included are books on triangulation, sextant astronomical observations, meteorological records, odometer readings, geodetic data, and observations for time. The bulk of data in the collection pertains to New Mexico and Colorado. Some observation books are undated.

Scope and Contents June 19, 1875, Fort Garland, Colo. through Nov. 14, 1875, at "Tequesquita, N.M." Odometer and sextant observations.

Scope and Contents Specific dates not shown, triangulation data.

Scope and Contents Specific dates not shown, triangulation data. Note: inside cover frontispiece has the notation "Morrison's-Maxson's Triangles, 1877."

Scope and Contents Remarks page at beginning of book carries this notation: "This book contains a copy of angles read during the season of 1875 by the Party No. 3 Colorado Division. The instruments used were two, an 8 inch No. 7? Wrdemann transit reading to 10" which was soon discarded for its poor glass; and a Stockpole 6 in 10" transit no 1458 which, though less steady, and not so well divided gave better satisfaction. The weather generally was exceedingly bad for triangulation, it being the rainy season, the...

Scope and Contents Specific dates not shown, nonspecific location triangulation data (believed to be Nevada).

Scope and Contents Specific dates not shown, three-point station distance measurements.

Scope and Contents Work of field season 1878, developed from the Fort Bayard base. Three-point distance measurements.

Scope and Contents Sutro base. Specific dates not shown, three-point distance measurements.

Scope and Contents Base line near Fort Bayard. Triangulation data.

Scope and Contents Barometric, aneroid barometer, temperature, clouds, and rain and snow data.

Scope and Contents "Observations taken during the rainy season and much interrupted by clouds, many stars thus observed when made faint, bisected after the meridian or lost altogether." Micrometer observations.

Scope and Contents Sextant, chronometer observations.

Scope and Contents Note: following dates in title, beginning p. 24, are entries dated from Aug. 16, 1878, through Nov. 18, 1878; dates do not run consecutively. Sextant observations. Several entries are crossed through with the notation "wrong star."

Scope and Contents Note: first observation data recorded begins on July 30, 1878. Sextant observations.

Scope and Contents Longitude or latitude observations.

Scope and Contents Division of land into water surface, agricultural, grazing, timber, and arid or barren; includes an "explanation of method of obtaining areas of economic features by squares" and a special notation with regards to chaparral.

Scope and Content From the Collection: This collection contains data for all of the states within the survey area, with the exception of Idaho and Montana. There are 53 items in the collection, all of them bound volumes of survey observations. Included are books on triangulation, sextant astronomical observations, meteorological records, odometer readings, geodetic data, and observations for time. The bulk of data in the collection pertains to New Mexico and Colorado. Some observation books are undated.