◄ Napier'S Rods ►

Dictionary
(n.) A set of rods, made of bone or other material, each divided into nine spaces, and containing the numbers of a column of the multiplication table; -- a contrivance of Baron Napier, the inventor of logarithms, for facilitating the operations of multiplication and division.

                                                                                                                                                                                                                                       

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Napier'S Bones
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