210 1. P. Косн. 
First and foremost the attempt had to be made to bring the geo- 
graphical survey to a natural finish, and this task in itself so fully 
engrossed the staff at my disposal for the survey work, that all 
systematic triangulation had to be given up. 
Under these circumstances the triangulation work as continued 
came to be limited to a trigonometric station pointing (the problem 
of Pothenot) of the points, the position and altitude of which we 
desired to determine with regard to the geographical survey work. 
The station points were not marked off with brass bolts; but after 
the conclusion of the survey a cairn was built, which could then 
be used as a fixing point in the later trigonometric station pointings. 
In this manner Snenæs (XVI), Nordre Orienteringss (XIV), Søndre 
Orienteringss (XV), Moskusoksefjeldene (XXIII), Trekroner (XIX), 
Hvalrosodden (XXI), Brystet (XX), Rypefjeldet (XXII) and Teufelkap 
(XXIV), as well as a few points on the outer coast of Germania 
Land, were joined to the triangulation net as stations, and besides 
a very large number of points in the ground, offering natural, sharp 
sighting points were determined by bearings with three or more 
sights, among others Haystack and Kap Récamier and Rekvedoen 
(driftwood island) in Skærfjorden (the skerry fjord). 
The object aimed at in the triangulation work might thus be 
said to have been achieved, and as regards the map made of Dove 
Bugt etc. and the computation of the altitudes of mountains, the 
accuracy was fully sufficient; on the other hand I dared not a 
priori depend upon the connection with Haystack being so good, 
that I could in this manner compute the longitude, and in the 
autumn of 1907 I consequently had to have recourse to the difficult 
astronomical determination of longitude by means of observations of 
the moon. 
The horizontal as well as the vertical angles were in 1907—1908 
measured in the same manner as in the autumn of 1906; but as the 
sides of the triangles had gradually increased, until they were up- 
wards of 40 kilometres, we could no longer — particularly in respect 
of the unstable conditions of refraction — depend upon the altitudes 
computed, even though the control was satisfactory. At Hvalros- 
odden (walrus point), where the height of the station was only 2m, 
the levelling was determined by measuring at a point on the coast, 
estimated to be situated in the mean sea level, and from there 
carried to the stations in the inner part of Dove Bugt. 
rades. In other circumstances the survey work would have benefited by a very 
considerable part of the labour which was lost with the sledge party of MyLıus- 
ERICHSEN or employed in searching for the latter. 
