Survey of Northeast Greenland. | 385 
Starting from the supposition that Peak 4 is identical with Кар 
Schmelck one may make an estimate of the distance from HAGEN's 
standing place to Point 2. When making drawings of the kind we 
are here dealing with experience, however, shows that amateurs 
considerably exaggerate the vertical measures in proportion to hori- 
zontal ones. It will, therefore, be necessary first of all to form an 
idea of the vertical measures of the angles. 
If Peak 4 is to be identical with Kap Schmelck, the altitude 
may, according to FREUCHEN's map, be put at 670 m, whereas Peak 7 
gets the altitude 710. The distances to these two peaks from the 
cairn are 32 km and 27 km respectively. The angular altitude of the 
peak, v, may now be computed from 
MH, — ав 
where Н is the altitude of the peak, H, НАсех’з$ height of vision, D 
the distance, k the co-efficient of refraction!) and R the radius of 
the curvature of the earth. From this we once more get the altitude 
above the apparent horizon by adding 77.7 to v. In this manner the 
altitudes above the apparent horizon of Peaks 4 and 7 become 70' 
and 89’ respectively. In the panorama the corresponding altitudes 
are 18 mm and 22 mm. For the angle of depression at Point 2 we 
get in this manner two expressions: 
71.7 u >70’ = 15.5 and 7.7 LE 89’ =. 15°.8. 
The two values harmonize, as it will appear, so well that as far 
as the estimate is concerned, it is immaterial which of the two one 
uses. If the angle of depression is put at 15.6 and the height of 
vision above the “sikosak’ at 20 metres, the distance to Point 2 be- 
comes nearly 4.5 km. 
One might now lay down Point 2 in FREUCHEN's map under the 
presumption that Hacen’s standing place was at d (Fig. 60). The 
horizontal distance 2—3 in the panorama is 34mm. To this should 
correspond an angular distance?) of = x 34 — about 8°.4. Point 2 
will then be near e (Fig. 60), and the course of the coast line must 
be very nearly as shown in the figure. So the supposition of an 
error in HAGEN's bearings had to be abandoned. 
1) For k we have here used the value 0.2; it is probably nearer 0.4 This, how- 
ever, is of no importance in this place. 
*) The horizontal distance between 3 and 7 is in the panorama 56.5 mm. To this 
corresponds, as seen from the cairn, an angular distance of about 14°. 
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