LONDON Drawn and engraved expressly for the POST OFFICE DIRECTORY
Map of London published by Benjamin Rees Davies for the Post Office Directory with title and scale bar in table at top right. The London post codes W, N, N.E., E, S.E., S and S.W. are indicated. Davies, Benjamin Rees
KAART van LONDEN enz en van het NABY GELEGEN LAND ruim een Uur gaans. rondsom dezelve Stad; getrokken uit de groote gemeeten Kaart van de Hr. JOHN ROCQUE, Te AMSTERDAM by ISAAK TIRION 1754
In the second half of the18th century, the introduction of turnpike roads and the increased coach-traffic in and out of London contributed to the popularity of the maps of the countryside around the capital. This map of the area ten miles round the City of London was published in Amsterdam by Isaak Tirion. Based on John Rocque's survey of 1744, the map’s title, imprint and key appears in a table at top left. The scale bars are in a panel below the plan. Built-up areas are stippled in the City and hatched elsewhere. Tirion, Isaak
LONDON AND ITS ENVIRONS LEVELS TAKEN BY ORDER OF THE COMMISSIONERS OF SEWERS
The cholera outbreaks of the 1830s and 1840s forced the government to make drastic improvements to the methods of drainage and sewage disposal in London. A Metropolitan Commission of Sewers was charged with the central task of unifying the existing piecemeal drainage system and forming a plan for a completely new one. A new map showing the levels of the land to be drained was needed for this. In March 1848, officers of the Royal Engineers began to prepare stations for triangulation. Observation posts were set up on one of the towers of Westminster Abbey and over the cross of St Paul's. This map is the result of the survey, showing the relative altitude of the land, a necessary preamble to planning drainage systems, as sewage can only be washed away downhill. Wyld, James
JURISDICTION OF THE METROPOLITAN POLICE
This map illustrates plans for the reform of the jurisdiction of Metropolitan Police. Based on Dawson's map of 1832, the map’s title appear along the top, with compass star at top right, explanatory note at bottom left, and a scale bar at bottom right. District boundaries are highlighted in colour, with the old limits of London, Westminster and Southwark shaded. Formed in 1829, the Metropolitan Police had its jurisdiction extended in 1839to Greater London - an area taken to mean all parishes partly within twelve miles of Charing Cross or wholly within fifteen miles of Charing Cross. In the same year, the City of London formed its own police force. Dawson, Lieut. Robert K.