This is the first full-length biography of a man who was primarily a botanist but who is best known for his map of North America. He left a well-established medical practice in his native Virginia in 1746 to live in London where he became active in scientific, social, and political circles. One of the period's outstanding cartographical achievements, Mitchell's map served as the basis for the Treaty of 1783 and for the still-existing United States-Canadian...