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The second edition of Drawing the Line: How Mason and Dixon Surveyed the Most Famous Border in America updates Edwin Danson's definitive history of the creation of the Mason - Dixon Line to reflect new research and archival documents that have come to light in recent years. * Features numerous updates and revisions reflecting new information that has come to light on surveyors Charles Mason and Jeremiah Dixon * Reveals the true origin of the survey's starting point and the actual location of the surveyors' observatory in Embreeville * Offers expanded information on Mason and Dixon's transit of Venus adventures, which would be an important influence on their future work, and on Mason's final years pursuing a share of the fabulous Longitude prize, and his death in Philadelphia * Includes a new, more comprehensive appendix describing the surveying methods utilized to establish the Mason-Dixon Line