by Willis E. Johnson
Publisher: American Book Company 1907
Number of pages: 346
Contents: The Form of the Earth; The Rotation of the Earth; Longitude and Time; Circumnavigation and Time; The Earth's Revolution; Time and the Calendar; Seasons; Tides; Map Projections; The United States Government Land Survey; Triangulation in Measurement and Survey; The Earth in Space; Historical Sketch.
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by Jack Dangermond, Matt Artz - ESRI
GIS has evolved into a crucial tool for science-based problem solving and decision making. GIS uses the power of information technology to examine geographic knowledge in ways that would be extremely time-consuming and expensive if done manually.
by A.S. Walker - U.S. Geological Survey
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Learn how to read, use, and create maps and along the way explore how maps reflect the relationship between society and technology. Mapping is an essential form of scientific and artistic inquiry as well as a trillion dollar business.
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The Great Lakes are an important part of the physical and cultural heritage of North America. Spanning more than 1,200 km, these inland freshwater seas have provided water for consumption, transportation, power, recreation and a host of other uses.