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11. New York City WiFi Hotspots, 2010

2009. New York (N.Y.). Department of Information Technology and Telecommunications. New York City WiFi Hotspots, 2010 is a point representing approximate location of Wi-Fi hotspots as of 2010. This dat set was created by NYC Depar... >Department of Information Technology and Telecommunications.

12. New York City WiFi Hotspots, 2014

2014. New York (N.Y.). Department of Information Technology and Telecommunications. New York City WiFi Hotspots, 2014 is a point representing approximate location of Wi-Fi hotspots as of 2014. This dat set was created by NYC Depar... >Department of Information Technology and Telecommunications.

13. A Map of Baltimore, 1920

1920. Digital Social Science Center (DSSC), Columbia University Libraries. This is a scanned version of the 1920 paper map entitled: A Map of Baltimore. The map was scanned at 300 dots per inch and is in the TIFF format. A. Hoen & Co.

14. Railroad map of New Jersey, 1915

1915. Digital Social Science Center (DSSC), Columbia University Libraries, New Jersey. Geological Survey., Kummel, Henry Barnard, b. 1867, Vermeule, C. C. (Cornelius Clarkson), 1858-1950, and Mead, Charles A. This is a scanned version of the 1915 paper map entitled: Railroad map of New Jersey published by the New Jersey Geological Survey. The map shows ... A. Hoen & Co., Lith.

15. Map of the Arctic Regions, 1912

1912. Digital Social Science Center (DSSC), Columbia University Libraries, Briesemeister, William A., American Museum of Natural History., and American Geographical Society of New York. This is a scanned version of the 1912 paper map entitled: Map of the Arctic Regions. The map was scanned at 300 dots per inch and is in the TIFF f... American Geographical Society.

16. New York Area Metropolitan Transportation Map, 1942

1942. Digital Social Science Center (DSSC), Columbia University Libraries, United States. Army. Corps of Engineers., United States. Army Map Service., and War Department, Corps of Engineers, U.S. Army. This is a scanned version of the 1942 paper map entitled: New York Area Metropolitan Transportation Map published by the United States Army Map Ser... Army Map Service, U.S. Army.

17. United States Afternoon Relative Humidity, 2012

2012. National Climatic Data Center (U.S.), United States. National Environmental Satellite, Data, and Information Service, United States. National Oceanic and Atmospheric Administration., and Digital Social Science Centaer, Columbia University Libraries. United States Afternoon Relative Humidity is a point theme representing the relative humidity as measured at weather stations throughout the United... Asheville, North Carloina.

18. United States Average Percent of Possible Sunshine, 2012

2012. National Climatic Data Center (U.S.), United States. National Environmental Satellite, Data, and Information Service, United States. National Oceanic and Atmospheric Administration., and Digital Social Science Centaer, Columbia University Libraries. United States Average Percent of Possible Sunshine is a point theme representing the the percent of possible sunshine as measured at weather statio... Asheville, North Carloina.

19. United States Average Snowfall, 2012

2012. National Climatic Data Center (U.S.), United States. National Environmental Satellite, Data, and Information Service, United States. National Oceanic and Atmospheric Administration., and Digital Social Science Centaer, Columbia University Libraries. United States Average Snowfall is a point theme representing average snowfall (including ice pellets and sleet) in inches as measured at weather st... Asheville, North Carloina.

20. United States Average Wind Speed, 2012

2012. National Climatic Data Center (U.S.), United States. National Environmental Satellite, Data, and Information Service, United States. National Oceanic and Atmospheric Administration., and Digital Social Science Centaer, Columbia University Libraries. United States Average Wind Speed is a point theme representing the average wind speed in miles per hour as measured at weather stations throughout ... Asheville, North Carloina.