No. 4. Massachusetts-Connecticut. Springfield sheet. U.S. Geological Survey, J.W. Powell, Director. State of Connecticut ... State of Massachusetts ... commissioners. Henry Gannett, Chief Geographer. Marcus Baker, Geographer in charge. Triangulation by U.S. Coast and Geodetic Survey and Borden surveys. Topography by C.C. Bassett and C. Arrick, under direction of W.D. Johnson and S.H. Bodfish. Surveyed in 1886 and 1887. (1893)
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