REPORT OF COMMISSION VII
GVII-31
Gandillot, J., (1955), “Annals of Univ. of Paris, No. 1 (Geology and Aviation),” Univ. of Paris.
France.
Gandillot, J., (1955), “Flying over the Alps between Munich and Brenner Pass (Display of 15
Kodachromes),” French Geological Society C. R. Summary. France.
Giret, R., (1955), The Tropics Aviation in the Service of Mine Prospecting (pp. 9-15),” Pouzet,
(July). France.
Hopkins, D. M., Karlstrom, N. V., Thor, and others, (1955), “Permafrost and Ground Water in
Alaska,” U. S. Geological Survey Professional Paper 264F. United States.
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umes I and II,” Purdue University, (Feb.). United States.
Lattman, L. H. and Olive, W. W., (1955), “Solution-Widened Joints in Trans-Pecos Texas,”
Bulletin American Association Petroleum Geology, Vol. 39, No. 10, (Oct.), p. 2084-2087. United
States.
Lattman, L. H. and Tator, B. A., (1955), “Origin of a Cluster of Bays on the Alabama Coastal
Plain,” Journal of Geology, Vol. 63, No. 4, (July), pp. 388-391. United States.
Melton, F. A., (1953), “Geologic Exploration and Mapping with Aerial Photographs,” Selected
Papers on Photogeology and Photo Interpretation, (Apr.). United States.
Smith, H. T. U., (1953), “Photo Interpretation of Terrain,” Selected Papers on Photogeology and
Photo Interpretation, (April), GG 209/1. United States.
Tator, B. A., (1954), “Drainage Anomalies in Coastal Plains Regions,” Photogrammetric En
gineering, Vol. 20, No. 3, (June), pp. 412-417. United States.
Thurrell, R. F., Jr., (1953), “Procedures and Problems of Photogeologic Evaluation,” Selected
Papers on Photogeology and Photo Interpretation, (April), GG 209/1. United States.
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logical Survey Open File Report. United States.
Forestry and Land Use
AERIAL PHOTOS ARE REPLACING FOREST MAPS
Sweden reports that the Korsnas Company which owns vast forest areas in
the central part of Sweden, is using aerial photographs as forest maps. Within a
short time these photographs will completely replace the ordinary drawn maps
earlier used. However it has become apparent that photographs can be applied
to more extensive parts of forestry than drawn maps. Photographs are thus
used as a tool in the everyday activities of the forester. This application of photo
graphs is believed to be the most important of all.
A condition for using photographs in this way is, however, that the material
be comfortable to use, and that the staff get an opportunity of learning photo
interpretation. Therefore, the activity up to now, has been concentrated on pre
paring the material in a suitable way, and on introducing the aerial photograph
as a forest map. Thereby a procedure has been worked out, under which the
photographs are cut and pasted on an aluminium-carton, so that one,can com
fortably see stereoscopically even in the field. In the United States the forester
is often substituting the photo-map for the conventional map. Timber sale areas
and specific logging areas are outlined on photos and then checked in the field.
Sweden, a land of forests, is interested in technical progress, forest photo-
grammetry and especially photo-interpretation. In the small-scale forestry,
including half of the forest area of the country, the interest in photo-interpreta
tion is fairly new. In the big forest enterprises photo-interpretation is well
known, and the period of photogrammetric experiments is already passing over
to a period of stabilized practice. In the main, photo-interpretation is used in
stead of drawn maps. In the last years the photos have been used to some extent
in planning the logging operations, and in locating forest roads. On the other
hand, photogrammetric methods have not yet been able to supersede the well-
