i) In Sweden a few rectifiers and small series of mirror- and lens- 
stereoscopes are constructed. Large instruments are not made. 
D) GENERAL REMARKS. 
Photogrammetry is very much used for several mapping purposes. 
It has contributed to a more simple, a quicker and cheeper solving of 
mapping and planning work compated with classical methods. The 
years 1948-1952 are characterized as a period when photogrammetry is 
beginning to find employment in new domains. This development is 
still continuing. 
Sven G. MôLLER 
Director of division of the swedish Land Survey Board, Reporter 
Stockholm, the 25 th February, 1952 
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