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  1. Title: Precambrian geology and geochronology of Minnesota, Bulletin 41, Plate 1

    Contributors:

    Summary: Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of northeastern Minnesota, scale 1 inch = about 15 miles.

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  2. Title: Precambrian geology and geochronology of Minnesota, Bulletin 41, Plate 5

    Contributors:

    Summary: Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Granite Falls area, Minnesota, showing locations of dated samples, scale 1 inch = about 1/4 mile.

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  3. Title: Precambrian geology and geochronology of Minnesota, Bulletin 41, Plate 4

    Contributors:

    Summary: Map of western part of the Lake Superior region, Minnesota, showing location of samples that were age-dated by radioactive isotope methods, scale 1 inch = about 40 miles.

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  4. Title: Precambrian geology and geochronology of Minnesota, Bulletin 41, Plate 2

    Contributors:

    Summary: Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of east-central Minnesota, scale 1 inch = about 10 miles.

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  5. Title: Precambrian geology and geochronology of Minnesota, Bulletin 41, Plate 3

    Contributors:

    Summary: Map of the Minnesota-Ontario border region, showing location of dated samples, scale 1 inch = about 20 miles.

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  6. Title: Map of southwestern Indiana showing locations of active coal mines

    Contributors:

    Summary: Blue line print. 'Base modified from Indiana Department of Conservation, Geological Survey. Base map of portion of western Indiana, 1951.' Includes 'Outline map of Indiana showing location of map area', 'Township diagram', and index of 'Active coal mines in Indiana (as of February 1, 1975).' Scale approximately 1:325,000. Compiled by Harold C. Hutchison.

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  7. Title: Map of southwestern Indiana showing locations of active coal mines

    Contributors:

    Summary: Blue line print. 'Base modified from Indiana Department of Conservation, Geological Survey. Base map of portion of western Indiana, 1951.' Includes 'Outline map of Indiana showing location of map area', 'Township diagram', and index of 'Active coal mines in Indiana (as of February 1, 1974).' Scale approximately 1:325,000. Compiled by Harold C. Hutchison.

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  8. Title: Map of southwestern Indiana showing locations of active coal mines

    Contributors:

    Summary: Blue line print. 'Base modified from Indiana Department of Conservation, Geological Survey. Base map of portion of western Indiana, 1951.' Includes 'Outline map of Indiana showing location of map area', 'Township diagram', and index of 'Active coal mines in Indiana (as of February 1, 1970).' Scale approximately 1:325,000. Compiled by Harold C. Hutchison.

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  9. Title: Map of southwestern Indiana showing locations of active coal mines

    Contributors:

    Summary: Scale approximately 1:380,000.

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  10. Title: Distribution, structure, and mined areas of coals in Fountain and Warren Counties, and the northernmost part of Vermillion County, Indiana

    Contributors:

    Summary: Preliminary coal map no. 9--Margin.; Includes 1 ancillary map, 1 diagram showing township enumeration, 1 index map, 1 stratigraphic column, and 1 cross section.; Verso shows 5 tables including indexed list of mines keyed to map. Scales differ

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  11. Title: Distribution, structure, and mined areas of coals in Spencer County, Indiana

    Contributors:

    Summary: Preliminary coal map no. 8--Margin.; Includes 2 geologic cross sections, location map, geologic column, index of mines, tables, and diagram of township sections. Scale approximately 1:126,720. Approximately 1 inch to 2 miles.

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  12. Title: Pattern of railway facilities in Chicago and vicinity /Harold M. Mayer.

    Contributors:

    Summary: Figure 3. Also appeared in author's Ph. D. dissertation (University of Chicago, 1943): The railway pattern of metropolitan Chicago.; Scale [ca. 1:130,000]; Master and use copy. Digital master created according to Benchmark for Faithful Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.

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  13. Title: Functional pattern of the railways in Metropolitan Chicago /Harold M. Mayer.

    Contributors:

    Summary: Figure 2. Also appeared in author's Ph. D. dissertation (University of Chicago, 1943): The railway pattern of metropolitan Chicago.; Scale [ca. 1:580,000]; Master and use copy. Digital master created according to Benchmark for Faithful Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.

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  14. Title: Principal railway facilities in central Chicago /[Harold M. Mayer]; base map by Chicago Land Use Survey.

    Contributors:

    Summary: Figure 6. Also appeared in author's Ph. D. dissertation (University of Chicago, 1943): The railway pattern of metropolitan Chicago.; Scale [ca. 1:18,000]; Master and use copy. Digital master created according to Benchmark for Faithful Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.

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  15. Title: Passenger train movement in Metropolitan Chicago /Harold M. Mayer.

    Contributors:

    Summary: Figures in circles represent the number of daily scheduled weekday passenger trains in both directions as shown in timetables in effect during January 1940. "Figure 4." Also appeared in author's Ph. D. dissertation (University of Chicago, 1943): The railway pattern of metropolitan Chicago.; Scale [ca. 1:230,000]; Master and use copy. Digital master created according to Benchmark for Faithful Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.

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  16. Title: Oil and gas pipe lines in Ohio, 1973

    Contributors:

    Summary: Scale approximately 1:510,000. "This map is a revision of the 1968 publication ..." Includes directory of oil pipe line companies and index to gas pipe line companies. "Ohio coordinate system 100,000-foot grid lines from U.S. Coast and Geodetic Survey data." Shows gas and liquid petroleum storage areas, points of distribution, compressor stations, refineries, pumping stations, propane plants, and major control points. Compiled by Harold J. Flint. Cartographic drafting by James E. Hairston. "Base map by United States Dept. of the Interior, Geological Survey."

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  17. Title: Simple Bouguer gravity map of Minnnesota and northwestern Wisconsin, M-10

    Contributors:

    Summary: Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between an observed gravity measurement and value predicted from a generalized earth model), shown as contour lines (isolines) of equal value, Minnesota and northwestern Wisconsin, scale 1:1,000,000.

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  18. Title: Map of the city of Ann Arbor, Michigan showing University of Michigan public buildings, schools and factories

    Contributors:

    Summary: Revised, enlarged and copyrighted Sept. 1907 by Harold D. Gould, publisher. Includes key to buildings. "Ann Arbor plant, the Richmond & Backus Co., Printers." 1 map: 40 x 36 cm.

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  19. Title: Population map of Wisconsin, 1850, 1860, 1870, 1880, 1900, 1920

    Contributors:

    Summary: From: Geographical review, vol. 18, no. 3, 1928, pl. III. 16 x 58 centimeters Scale [ca. 1:2,851,200] 1 inch equals approx. 45 miles. General Map Collection

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  20. Title: Map of the state of Alabama : compiled from the official records of the General Land Office and other sources

    Contributors:

    Summary: Covers also part of Tennessee, Georgia, Florida, and Mississippi.; Relief shown by shading.; Prime meridians: Greenwich and Washington, D.C. 80 x 52 centimeters Scale [1:760,000] General Map Collection

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