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Principal Triangulation. Plate XXIV. (to accompany) (V. 2: plates) Ordnance Trigonometrical Survey. Account of Principal Triangulation. Plates. (with) (V.1: text) Ordnance trigonometrical survey of Great Britain and Ireland : Account of the observations and calculations of the principal triangulation ... London: Printed by George Edward Eyre, and William Spottiswoode. Printers to the Queens most excellent Majesty. 1858. | 2 volumes present systematic exposition of the entire triangulation with an investigation of figures, dimensions and mean density of the earth. V. 1 Text: 782, [2] pages. Includes description of stations. Description of instruments. Reduction of observations. Observations, terrestrial and astronomical. Measurement of base lines. Principles of calculation. Reduction of the triangulation. Triangles and distances. Terrestrial zenith distances altitudes. Connection of geodetical and astronomical observations. Determination of the amount of local attraction at various astronomical stations in the triangulation. Determination of the spheroid most nearly representing the surface of Great Britain and Ireland. Of the length of the degree, etc., latitudes and longitudes and directions of the meridian at the different stations. Figure of the Earth. Bound in brown leather covers with gilt borders. Spine with gilt tooled raised band with "Ordnance Survey: Principal Triangulation" stamped in gilt. Accompanied by letters associated with book. V.2. 29 plate: including maps, figures and views. Bound in cloth covered boards. Spine stamped in gold with title " Ordnance Survey: Account of principal triangulation: Plates."
We print high quality reproductions of historical maps, photographs, prints, etc. Because of their historical nature, some of these images may show signs of wear and tear - small rips, stains, creases, etc. We believe that in many cases this contributes to the historical character of the item.
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