423 resultados para Michigan. Geological Survey Division
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Appendices: I. Notes on some fossils from the Cambro-Silurian and Silurian rocks of the Albany river drainage system in northwestern Ontario, by J. F. Whiteaves.--II. Lists of insects, by J. F. Fletcher.
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"WRI 84-4056"--P. [4] of cover.
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Bibliography: p. 13.
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R. Earl Stories, in charge, and Bruce C. Owen, University of California, and E.J. Carpenter, M.H. Layton and W.J. Leighty, Soil Survey Division, Bureau of Chemistry and Soils, United States Department of Agriculture.
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On cover: U.S. Department of the Interior, Geological Survey, Conservation Division; U.S. Department of Agriculture, Forest Service, Bridger-Teton National Forest.