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  • Deduction of the Distance by Mitchell Method 

    Dinwiddie, James (2009-07-22)
    These notes written by James Dinwiddie ca. 1793 contain a series of calculations of distance using the Mitchell Method. This file consists of nine pages of notes.
  • Logarithms 

    Dinwiddie, James (2009-07-28)
    This notebook kept by James Dinwiddie examines arithmetic involving logarithms. Dinwiddie includes sections on addition and subtraction as well as example calculations. This file consists of one notebook that is eleven ...