. "Napier's rods"@en-us . . . . . . . . "0"^^ . "Napier's bones"@en-us . "103664350"@en-us . . "103807334"^^ . "03807334-n"^^ . "a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier"@en-us . "0"^^ . "Napier's bones"^^ . .