NAPIER, JOHN |
Scotland, 1550-1617, |
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Baron Merchiston; published a work on logarithms in 1614 and invented two calculating devices called "Napier's Bones" and a more complicated version called the "Promptuary", in 1617. |
Merchiston. |
DNB; DSB; G.L'E. Turner 24; Tomash; etc. |