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A Description of the Counties of Sterling and Clackmannan.
(Illustrated with a Map.)

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MATHEMATICAL CORRESPONDENCE.
Answers to the Question, in our Magazine for November.
QUestion I. Answered by the Proposer.

R" LE. To the multiplicand annex as many cyphers as there are figures in the multiplier, and from thence subtract the multiplicand; the number resulting multiply by the first figure of the multiplier, and the product divided by 9 will give the answer required. Dem. Call the multiplicanda, the multiplier b, and the first figure thereof

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