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Half title: The University of Minnesota. A report on the Geological and Natural History Survey of Minnesota, made in pursuance of an act of the legislature of the state, approved March 1, 1872. Published by the authority of the state. ; Imprint varies. Vol. 2, 4-6 published: St. Paul, Minn. : Pioneer Press Co. ; Includes bibliographies. ; v. 1. 1872-1882 / by N.H. Winchell ; assisted by Warren Upham --v. 2. 1882-1885 / by N.H. Winchell ; assisted by Warren Upham -- v. 3, pt. 1. 1885-1892. Paleontology / by Leo Lesquereux . [et al.] -- v. 3, pt. 2. 1892-1896. Paleontology / by Edward O. Ulrich . [et al.] -- v. 4. 1896-1898 / by N.H. Winchell ; assisted by Ulysses S. Grant . [et al.] -- v. 5. 1898-1900. Structural and petrographic geology of the Taconic and Archean / by N.H. Winchell ; assisted by U.S. Grant -- v. 6. 1900-1901. Geological atlas with synoptical descriptions / by N.H. Winchell. ; Mode of access: Internet.

Half-title: The University of Minnesota. A report on the geological and natural history survey of Minnesota; made in pursuance of an act of the legislature of the state, approved Mar. 1, 1872. Pub. by the authority of the state. ; N. H. Winchell, State Geologist. ; Several plates accompanied by leaf with descriptive letterpress. ; Vol. 1; v.3, pts. 1-2, printed in Minneapolis. ; List of publications bearing on the petrography of Minnesota: v. 5, p. 76-78. ; Bibliography of Minnesota iron mining: v. 4, p. 613-616. ; Review of earlier literature on Lower Silurian fauna in the upper Mississippi Valley: v. 3, pt. 1, p. x-xlix. ; Mode of access: Internet.