Abstract
IN the report of the Progress of the Ordnance Survey for the year 1932-33 (London: H.M. Stationery Office, 1933. 3s. Qd. net), attention is directed to the difficulties and delay in revision of the sheets owing to financial restrictions. The reduced staff available for field work on large-scale plans means that revision has to be limited, more and more, to areas completely altered or built over since the last edition of the sheet. Field work thus tends to become original survey and the time needed for each sheet increases. While the yearly output of 25-in. plans was more than two thousand in 1923, it has now fallen to about seven hundred. In the earlier year the number of man-days spent in the field upon the revision of one 25-in. sheet was about eleven; it is now about fifty-two. The delay is thus progressive as time goes on, and has already become very serious. Since the revision for the one-inch sheet is based on large-scale plans, the new edition of small-scale maps is seriously impeded. Whereas in 1913 a one-inch reviser could do 96 square miles per month in open country or 40 square miles in close country, he can now do only 18 per month in country round London. Nevertheless, the new relief edition of the one-inch map is making steady if slow progress.
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Revision of Ordnance Maps. Nature 132, 962 (1933). https://doi.org/10.1038/132962c0
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DOI: https://doi.org/10.1038/132962c0