geological purposes should be laid across the general strike of the structure in sedimentary 
formations dipping at a high angle. 
Studies of a high mountainous region in the Central Eastern Alps have provided some 
interesting data on the relative distribution of exposed bed-rock, scree, talus, glacial 
deposits and the behaviour of glaciers since the middle of last century. In this connection 
due consideration was given to possibilities of portraying ground-features in topographic 
mapping. As the scale was somewhat too large (about 14.000) some trouble was expe- 
rienced during compilation by more simple methods. It is firmly believed that photos on 
a much smaller scale would have minimized such difficulties without the loss of any 
information. 
The study and mapping of a terrace landscape was also carried out in connection with 
a paper on terrace nomenclature by Prof. Howard of Stanford University. 
Essays on highway planning based on principles of economic geology were worked out 
by students at the I. T.C. 
An extensive photo geological reconnaissance project was carried out in New Guinea. 
Approximately 150.000 square km where mapped from trimetrogon aerial photographs. 
The photo interpretation included areas of cristalline rocks as well as sedimentaries. 
Some more detailed surveys were made of specific areas. For this purpose verticals were 
used, which partly were in the rather unsuitable scale 1 : 20.000. 
A smaller, but interesting project was carried out in Surinam where a comparatively 
flat area of cristalline rocks was mapped in detail, notwithstanding the dense tropical 
vegetation. 
Geomorphological aerial photograph interpretation was carried out in the Central 
Mountain Chain of New Guinea. The study centered on the mapping of pleistocene glacial 
phenomena. Related field work was carried out during the Star Mountains Expedition 1959. 
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