The theory and practice of surveying. Designed for the use of surveyors and engineers generally, but especially for the use of students in engineering (1886)
Johnson, J. B. (John Butler), 1850-1902 · New York, J. Wiley & sons · leaf 444
es formed by joining the centre height at one end with aside height at the other end sectionon each side the centre line (Fig. 114),these lines being called diagonals,an exact computation of the volumeis readily made without computingthe mid-area. Two diagonals arepossible on each side the centre… … V 6 X 27L W + d:)c^ + (d^ + d:)c, + DC+ DC w. + ^{K + /«, + ^ + f< + h: + H) (I) * For % demonstration of this formula see Hencks Field-Book. 414 SURVEYING. where ^,, h^, and h^ are the centre and side heights at one sec-tion and d^ and d^ the distances out, c^, h^\ h^, d^, and d^ be-ing the…
Surveying
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