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UNIVERSITY OF NOTTINGHAM, Department of Civil Engineering 
The department is investigating the precision with which long-term structural 
deformations may be monitored by terrestrial photogrammetric methods. 
ORDNANCE SURVEY 
The Ordnance Survey does not carry out non- topographic photogrammetry, but 
professional staff have given information and advice to potential users in a 
variety of fields. 
PHOTARC SURVEYS LIMITED 
This company, specialising in architectural photogrammetry, was set up in 
1974 and has carried out a number of elevation surveys at 1:50 and 1:100 scale 
of buildings, street facades and bridges. Rock face surveys at 1:50 scale for 
stabilisation work, volumetric surveys of stockpiles and structural and design 
surveys of ceilings have been undertaken, as well as a 1:1 scale survey of a 
stone cross in Scotland. Townscapes and town silhouettes have been derived 
from aerial photography. Zeiss (Oberkochen) SMK 120 and Zeiss (Jena) 
10/1318 cameras are available for terrestrial work. 
PROPERTY SERVICES AGENCY, Department of the Environment 
The agency does not carry out photogrammetric work, but its Directorate of 
Civil Engineering Development has commissioned machine plotted or rectified 
photographic elevations of public buildings and ancient monuments at scales of 
1:50 and 1:100. In collaboration with the City University, photogrammetric and 
traditional methods of monitoring deformations have been compared. The 
photogrammetric method used a Zeiss (Jena) UMK 10/1318 camera and 
Stereocomparator. 
ROYAL COMMISSION ON HISTORICAL MONUMENTS (ENGLAND) 
The Royal Commission's photogrammetric unit has surveyed a number of 
buildings for its own work, and also for the Ancient Monuments Branch of 
the Department of the Environment, and for other organisations concerned 
with historic architecture (100). Among the major buildings surveyed were 
the north face of Salisbury Cathedral, Brixworth Church (Northamptonshire) 
and Witley Court, (Hereford and Worcester). A useful direct ink draughting 
technique was developed (48). In 1975 the unit was absorbed into the 
Institute of Advanced Architectural Studies of the University of York whose 
activities are described separately. 
UNIVERSITY OF SHEFFIELD 
The Department of Dental Health is carrying out a serial clinical stereophoto- 
grammetric study of changes in facial morphology produced by growth or 
surgery using a portable stereometric camera of the type designed at 
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Addenbrookes Hospital, Cambridge (34). 
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