The complete measurer; or, The whole art of measuring .. (1789)
Hawney, William · London : Rivington · leaf 217
794.9936(9.719 Feet, the Content* 15552 12429 12096 33391728 16113 15552 561 Demonfiration. The Parabolic Conoid is confli-tuted of an infinite Number of Circles, vvhofe Dia-meters arc the Ordinates of the Parabolh. Now, ac-cording to the Property of every Parabola, it will be, S A : A B ; : A B :… … □ b a, D f e, n g y, ^c, arc alfo a Series of Terms in the fame ProgreiTion, beginning at the Point S, wherein a AB is the greatefl: Term, and S A, the Number of all the Terms. Therefore nAB x|SAr=the Sum of all the Series. (By Lemma II.) Confequently, O A B X |: S A n the Sum of all the Series of…
Measurement · Geometry
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