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THEORY and PRACTICE

. O’F

G A U G IN G,

Demonstrated i * -
SHORT and EASY METHOD,

CoNTAINING, among other PARTICULARs,

The Method of Computing Decimally ; extračting the
SQ J A R E Root, with the Construction and Use of
, the SLIDING-RU L E explain’d at large.
The Elementary Properties of the Con 1 c Sect 1 on s, and
- the Manner of describing them in Plano.
General Principles of MEN's U R A T 1 on, with Theorems
for Measuring all right-lin’d Planes, Parallelopipedons, Pris-
matic Solids, the Conic Sečtions, Conoids, Spindles, theif
Segments, and Frustums, &c.
A General Proposition for measuring the Hoofs or Ungula's
of any Co N E or PY R A M I D ; and a new Method for
Measuring by Approximation.
With the App Lic A T 1 on of the preceeding Principles to
Pračtice; and illustrated throughout by particular Examples.
Published with the particular Approbation of the
Honourable CoM mission E Rs of Excise.

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G O V E R N O U R S

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Within that Part of Great-Britain call’d E N G L A N D;

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