Sweden 4 
Table 5 
Maps made to Order. 
Year 
Photographic maps 
1:5 000 — 1:20 000 
hectares 
Line maps 
1:500 — 1:5 000 
hectares 
1:8 000—1:10000 
hectares 
1:20 000 
hectares 
1952 
88 280 
18 667 
78 795 
1 650 
1953 
144 900 
24 050 
36 000 
— 
1954 
101 000 
39 367 
77 540 
— 
1955 
323 400 
36 582 
133 129 
24 
Total 
657 580 
118 666 
325 464 
1 674 
Table 6 
Photogrammetric Triangulations for Adaptation of Maps mode to Order. 
Year 
By precision instruments 
By Multiplex 
By radial 
line methods 
Number of 
strips 
Number of 
models 
Number of 
strips 
Number of 
models 
Number of 
pictures 
1952 
29 
214 
1953 
50 
335 
14 
223 
— 
1954 
46 
280 
36 
258 
660 
1955 
58 
353 
— - 
— 
325 
Total 
183 
1 182 
50 
481 
985 
The Geographical Survey Office is organized as shown in Fig. 1. 
Its main photogrammetric activities have hitherto been divided between 
two administrative units, a Photogrammetric Division dealing with the 
flights for air survey photography and producing the Photo-Maps, and 
a Photogrammetric Order Division dealing with orders for photogram 
metric work. This form of organization implies that routine of similar 
character is sometimes performed in two different parts of the office. 
It is thought that an amalgamation of the two units into one department 
divided into sections, so that all work of similar technical nature - 
irrespective of how ordered — would be done by the same unit and 
would be much more rational from the point of view of performance. 
Photogrammetric work is, however, done also outside the two photo 
grammetric divisions. The third section of the Topographic Division, 
for instance, does contouring for the Topographic and Military Maps 
in mirror stereoscopes. All divisions of the office are moreover doing 
photo-interpretation in connection with their plottings.