North American boundary,

North American boundary; : narrative of the survey by the British commission of the boundary between the British possessions in North America and the United States of America, under the Treaty of Washington of 9th August, 1842. The narrative of the survey, 1843-45, is signed: J.B. Bucknall Estcourt. Reports, etc., submitted to Estcourt by Capt. W. Robinson and Lieut. J.H. Pipon, engineers on the Commission, p. 12-55.