Roman Britain (Historical Map and Guide): 7

Product Information

Great Britain 1:1,000,000 (in the style of the International 1/1M map). Sheet 1 (North), Sheet 2 (South) Records of field work by the Falkland Islands Dependencies Survey and the British Antarctic Survey, formerly held by the DOS Survey Data Library, are now held by the British Antarctic Survey, Cambridge. Ordnance Survey already had its own international division. When the two organisations were merged in 1984, all international aerial photographs, maps, and survey data were amalgamated into one working collection. It was named Technical Information and Support Services and kept that title for seven years, before being renamed International Library in 1991. The International Collection was the result of the work of the Directorate of Colonial Surveys, the Directorate of Overseas Surveys, Ordnance Survey (Overseas Surveys Directorate) and Ordnance Survey International. The history of the International Collection By 1991 the last significant, aid-funded mapping projects had been completed by OSD and all survey parties had been disbanded. OSD’s title was changed to OS International and its priorities turned to consultancy, mainly in Eastern Europe, while traditional map production gradually declined.

We would be able to overlay these historical maps onto modern maps, so that it would be possible to see the historical data in relation to current features. We used to hold our own archive of maps, air photography and survey records from our work in many countries around the globe over the last half century or more. This archive - also known as the Ordnance Survey International Collection - has sat with several custodians since 2003. Here you can discover the history of the International Collection and find details on where our records are archived. The final steps used concrete, which the Romans had rediscovered (it had been used in Ancient Egypt). They seem to have mixed the mortar and the stones in the fossa. First a small layer of coarse concrete, the rudus, then a little layer of fine concrete, the nucleus, went onto the pavement or statumen. Into or onto the nucleus went a course of polygonal or square paving stones, called the summa crusta. The crusta was crowned for drainage.Non-Directorate of Overseas Surveys (DOS) series were mainly produced by national survey departments and held in the original OS International Library. They don't form part of the Ordnance Survey International Collection (OSIC) map archive at the Royal Geographic Society with the Institute of British Geographers (RGS-IBG). The series has been offered to academic institutions throughout the British Isles. Directorate of Overseas Surveys progress folders The MCCs, organised by 1:100 000 scale map sheet numbers (½˚ squares – technically not ‘square,’ but normally referred to as such), give current and superseded coordinates for every point that is plotted on the MCDs. This includes heights (ground level and station mark) and references to the files that contain its coordinates, station descriptions and photo identifications. Primary triangulation and traverse areas The example map sheets are held with full supporting records. Directorate of Overseas Surveys staff lists

RAF photography at varying scales is held, along with Royal Navy photography. Additional records exist for more than one set of cover at various dates and is available for environmental research, geomorphology, vegetation, communications, and settlement, across a 40–50-year time span. Although most of the maps are topographic, there are significant holdings of geological and land use mapping. Other thematic maps include climate, soils, and population. They're filed under code AD rather than by individual country. Directorate of Overseas Surveys survey data catalogue The RGS-IBG collection contains all series produced by the Directorate of Colonial Services (DCS) and its subsequent successors between 1946 and 1999. This includes: During the 1970s, government reviewed the DOS’ purpose. Then, in 1984, the organisation was merged with Ordnance Survey and given a new title: Overseas Surveys Directorate, OS (OSD).

The directions for making pavements given by Vitruvius. The pavement and the via munita were identical in construction, except as regards the top layer.

A set of maps usually covering the whole of Great Britain in 1-2 sheets. Often these show thematic overlays to illustrate particular subjects and distributions: geology, military districts, population, historical snapshots including Roman Britain, and Britain in the Dark Ages, and the Principal Triangulation. The Directorate of Overseas Surveys (DOS) survey data catalogue is stored in 49 Kalamazoo binders. The master control diagrams (MCDs), generally at 1:500 000 scale, show the position and classification of every astronomical, trigonometrical or Doppler station for which coordinates suitable for 1:50 000 scale mapping are held. Master trig diagrams (MTDs) on the same sheetlines and scale show the observed rays used to fix the trig stations. The Directorate of Overseas Surveys (DOS) book collection was merged with the Ordnance Survey Library’s collection in 1987. It has since been withdrawn from the library and has relocated to other institutions under the direction of the National Archives. During 2003 and 2004, Ordnance Survey and TNA sought suitable custodians of all parts of the collection and relocated them. The public could access the historical archives again from the end of 2004. Where are the International Collection archives now?

A guide to main areas of primary triangulation and traverse, and secondary and minor control established by Directorate of Overseas Surveys (DOS), is provided in the DOS Annual Reports from 1959 to 1984.