Lengths and Levels to Bradshaw’s Maps of the Canals, Navigable Rivers, and Railways, in the principal part of England. Dedicated to Thomas Telford… Datum, six feet ten inches under the sill of the old dock gates at Liverpool. London: Printed by E. Ruff… 1833. [Bound with, as published:]
[BRADSHAW, George.] Lengths and Levels to Bradshaw’s Maps of the Canals, Navigable Rivers, and Railways. From actual survey. Dedicated to Thomas Telford… Taken from a datum of six feet ten inches under the sill of the old dock gates at Liverpool.
London: T.G. White and Co. printers… 1832
2 works in one volume, 8vo, pp. 15 + (5)–20 pages, 1 folding map; 15, (1) pages. Some scattered foxing. Old cloth-covered boards, spine worn.
George Bradshaw published the first major railway map of Britain and the famous railway guides. His maps of the canals, navigable rivers and railways, a set of three known as Bradshaw’s Maps of Inland Navigation were published between about 1828 and 1835 and he also compiled these figures for the rise and fall of the canals, navigable rivers and railways. “It is remarkable that levels throughout all three maps are related to a single fixed datum (at Liverpool) before the Ordnance Survey adopted a similar practice” (Skempton, note). Skempton 124, a collected edition of nos. 122 and 123 with the addition of the folding map.
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