Description | Portrait engraving of head of Benjamin Franklin
Extract of letter from Franklin to Peter Collinson; 'I should be glad to know if the very ingenious Mr Canton has repeated those Experiments in the Transactions & what are the observations. '
Two 'Magic Squares' by Dr Benjamin Franklin. One square with explanation 'The Diagonals are to be reckon'd by Halves, not crossing but turning at right Angles from the Center, by which 4 Variete are made instead of two.' and a Magic square with 16 cells
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