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SYMPOSIUM PHOTO INTERPRETATION, DELFT 1962 
Fig. 7. Eight examples of purposes for which the heath area of 1938 is used in 1960 (C and D, 
however, in 1959). A: Forest plantation. B: Natural forest and (later) buildings. C: Buildings. 
D: Camping ground, roads and military training. E. Golf course. F: Speedway and pipeline 
for water. G: Military training field. H: Dumping place, forest plantation and water pipeline.