A treatise on surveying, comprising the theory and the practice ; (1887)
Gillespie, W. M. (William Mitchell), 1816-1868, Staley, Cady, 1840- [from old catalog] ed · New York, D. Appleton and company · leaf 168
n-venience of reference), the perpendicular distance of each stationfrom that meridian is the Longitude of that station; additive, orplus, if east; subtractive, or minus, if west. The distance of themiddle of any line, such as the sideof the field, from the meridian* iscalled the longitude of that… … 249. Longitudes, To give moredefiniteness to the development ofthis subject, the figure in the mar-gin will be referred to, and may beconsidered to represent any spaceinclosed by straight lines. Let N S be the meridian passingthrough the extreme westerly station of the field ABODE. * It is,…
Surveying
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