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I'm interested in the depiction of the Arctic Circle on maps and have two questions for the group: 1. I've noticed that many maps prior to the twentieth century show the Arctic Circle as two lines, whilst other lines of latitude are shown as single lines. Was this a cartographic tip-of-the-hat to the idea that the Arctic Circle is not fixed? Or was there another reason for the double line representation? One specific well-known example is the 1736-37 Lapland meridian map of de Maupertuis. 2. The only explicit cartographic recognition of a moving Arctic Circle that I've encountered is in some USGS 1:250,000 maps of Alaska. Can anyone direct me to other maps that explicitly acknowledge a moving Arctic Circle, Antarctic Circle or Tropics? Terence Day, Ph.D., Department of Geography, Okanagan College, Kelowna, BC, Canada _______________________________________________ MapHist: E-mail discussion group on the history of cartography hosted by the Faculty of Geosciences, University of Utrecht. The statements and opinions expressed in this message are those of the author and do not necessarily reflect those of the University of Utrecht. The University of Utrecht does not take any responsibility for the views of the author. List Information: http://www.maphist.nl Maphist mailing list [email protected] http://mailman.geo.uu.nl/mailman/listinfo/maphist
