At head of title: Department of State. Prepared by the Northern Boundary Commission. "Published in accordance with an Act of Congress approved March 3, 1877."

Message from the President of the United States communicating information in relation to the boundary-line between the United States and the possessions of Great Britain ... February 23, 1877. -- Reports of the Commissioner and of the Chief Astronomer of the Northern Boundary -- United States Northern Boundary Commission. Report of Commissioner Archibald Campbell. 1872-1876 -- United States Northern Boundary Commission. Reports of the Chief Astronomer and his assistants -- Report of Capt. W.J. Twining, Corps of Engineers, Brevet Major, U.S.A., Chief Astronomer and Surveyor -- Appendix A to Report of Capt. W.J. Twining, Corps of Engineers, Chief Astronomer: Report of Capt. James F. Gregory, Corps of Engineers, United States Army -- Appendix B to Report of Capt. W.J. Twining, Corps of Engineers, Chief Astronomer: Report of First Lieut. F.V. Greene, United States Engineers -- Appendix H to Report of Capt. W.J. Twining, Corps of Engineers, Chief Astronomer: Report on the declinations of the stars employed in latitude work with the zenith telescope ... by assistant Lewis Boss, now Director of Dudley Observatory -- Recapitulation of systematic corrections to declinations -- Catalogue of 500 stars for the epoch 1875.0, containing declinations with their annual variations and other terms of precession.