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Transactions of the Symposium on Photo Interpretation

Fig. 4. Crevassed area near the Banzare Coast and Paulding Bay, 66°28' S., and 124°00' E.,
taken at 10,000 feet (U.S. Navy photo TF 68)
Commonwealth Range Alice Glacier Queen Alexandra Range
f I Beardmore Glacier <—>- f
Left Vertical Right
Fig. 5. Mosaic of a trimetrogon set of three photographs
shows a trimetrogon mosaic made from one vertical and two oblique photo
graphs taken simultaneously. In selected areas base maps at 1 : 50,000 or
1 : 100,000 scale are being constructed from these photographs. Both photo
graphs and map compilations (fig. 6) are used in the field for identifying