00785cam a22002411 4500 gs 37000027 DLC 20260227111341.0 791203s1937 dcuabf f001 0 eng gs 37000027 (OCoLC)5754438 DLC Me DLC n-us-ct QE75 .B9 no. 881 Staack, J. G. (John George), 1878- Spirit leveling in Connecticut, 1922-35, [by] J. G. Staack. Washington, U.S. Govt. print. off., 1937. 1 p. l., 65 p., 1 l. incl. map, tables, pl. 23 cm. U.S. Geological Survey. Bulletin 881 At head of title: United States Department of the interior. Includes index. Connecticut Altitudes. 27324 27324