The geological surveys of Great Britain and Ireland were connected from
1832 to 1853 with the ordnance survey, but are now carried on
independently. The ordnance survey, too, no longer depends on the war
office but upon the board of agriculture and fisheries. A _Bathymetrical
Survey of the Freshwater Lochs of Scotland_, under the direction of Sir
John Murray and L. Pullar, was completed in 1908, and the results
published by the Royal Geographical Society.
France.
Proposals for a new map of France, to replace the famous Cassini map of
1744-1793 were made in 1802 and again by R. Bonne in 1808, but owing to
the wars then devastating Europe no steps were taken until 1817, and the
_Carte de France de l'état major_ on a scale of 1:80,000 was only
completed in 1880. It is engraved on copper. The hachured hills are
based upon contours, and are of admirable commensurability. It has
served as a basis for a _Carte de la France_, published by the Service
Vicinal on a scale of 1:100,000, in 596 sheets, and of a general map
prepared by the ministère des travaux publics on a scale of 1:200,000 in
80 sheets. On both these maps the hills are printed in grey chalk. A
third topographical map of France is being published in accordance with
the recommendation of a committee presided over by General de la Noix in
1897. The surveys for this map were begun in 1905. The maps are based
upon the cadastral plans (1:1000), thoroughly revised and connected with
the triangulation of France and furnished with contours at intervals of
5 m. by precise measurement. These _minutes_ are published on a scale of
1:10,000 or 1:20,000 for mountain districts, while the scale of the
general map is 1:50,000. Each sheet is bounded by parallels and
meridians. The hills are shown in brown contours at intervals of 10 m.
and grey shading in chalk (Berthaut, _La Carte de France, 1750-1898_;
Paris, 1899). A geological map of France on a scale of 1:80,000 is
nearly completed, there are also a map (1:500,000) by Carez and Vasseur,
and an official _Carte géologique_ (1:1,000,000; 1906).
Germany.
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