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South Phecles. The Poiona
day of mos
the Sum of
"next, at mnohem headii
otherwise the same will be Distrain'd for, without further Notice.
Day of Mary
THEORY and PRACTICE
Demonstrated in a
SHORT and EASY MET HOD.
CONTAINING, among other PARTICULARS;
SQUARE Root, with the Construction and Use of
the SLIDING-RULE explain’d at large.
the Manner of describing them in Plano.
for Measuring all right-lin'd Planes; Parallelopipedons, Prif-
Segments, and Fruftums, &c.
of any CONE or PYRAMID, and a new Method for
Measuring by Approximation.
Practice ; and illustrated throughout by particular Examples.
Published with the particular Approbation of the
Honourable COMMISSIONERS OF Excise.
Design'd for the Use of the Officers of that Revenue.
AUTHOR: And are to be had at his House in Portlanda
M DCC XL
19 Feb. 256HW
CHARLES POLHILL Esq;
Of and for the MANAGEMENT and RECEIPT of
Excise, Malt, &c.
mission, humbly inscrib'd by