Napier's bones

Napier's bones is a mechanical calculator or mathematical instrument.

Also recorded as Napier bones; Napier rods; Napier's rods.

Overview

Catalogue entries for instruments state maker, signature, completeness and working condition. VALÉORINE records this subject so that lots referring to it can be described consistently.

In detail

mathematical instrument invented by John Napier

Sources

Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.

reference work · Reputable secondary · Wikipedia
“Napier's bones”, English Wikipedia, consulted as further reading
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reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1358538: Napier's bones
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