Although the northwest boundary of Texas was determined in the sale of land from the State of Texas to the U.S. in 1850, the boundary remained unsurveyed until the organization of the United States and Texas Boundary Commission under John H. Clark in 1859-60. After completing the field work, Clark returned to Washington in 1861 and worked on his maps, observations and computations. The Civil War caused his work to be terminated in January 1862 without completion or publication of a survey report. Clark's survey was not published until authorized by Senate Resolution in 1882 (this report). The report contains Clark's complete field book and astronomical records, various official letters and reports, and 15 highly detailed maps showing portions of the boundary between Texas and New Mexico. An important record of early Texas boundary history.

309 pp. Octavo, hardbound in original full calf with 15 folding maps and numerous illustrations within the text.

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Condition: B+

Maps are generally very good to near fine with faint toning along the folds. Several maps have a few fold separations and one map has a 3" tear, all of which have been repaired on verso with archival tape. Text is clean and tight. Front cover and spine backstrip are missing.