00797cam a22002291 4500 gs 33000036 DLC 20260227111337.0 790212s1932 ndua s000 0 eng c gs 33000036 (OCoLC)4644958 Library, U.S. Geological Survey NdU DLC TD410 .S5 1932 Simpson, Howard E. (Howard Edwin), 1874-1938. Methods of reducing the flow of artesian wells, by Howard E. Simpson. Revised edition. Grand Forks, N. Dak., 1932. 7 p. illus. 23 cm. North Dakota Geological Survey. Bulletin 3 [Revised ed.] At head of title: Artesian water conservation fund. Artesian water paper no. 2. Artesian wells. 26999 26999