92 Е. Fropa. 
to 15 good balanus stripes gave аз а medium, that the position of these 
is 3,25 m below the datum (see fig. 10). 
As that possibility is obvious, that the petroleum-magazine may 
be demolished or altered before a sufficient number of years has elapsed, 
I also undertook measurements in another place, viz. at the creek on 
the westside of Ausiat (Egedesminde-Qen) south of Smallesund. On the 
lith of Aug. 1993 I here found as a medium of levelling to 17 balanus 
stripes a distance of 1,97 m below a chosen datum, which I have marked 
with a +, engraved on the flat topside of a big stone (see fig. 11). The 
topside is partly covered with lichens, the vertical sides are lightcoloured 
Marked stone 
N SS 
SI SS 
+ 
DAN 
Marked Stone 
DU DES > 
< 
Fig. 11. Marked stone at creek south of Smallesund. 
and the lower edge is a little above the highwater mark (some little 
grass is growing close to). Otherwise the stone is directly continued by 
the elevating ground behind. The neighbouring stones and boulders are 
of a light colour and seawashed. The sketch is drawn from one of those 
boulders more seawards, which rise above the surface at highwater, 
whereas they are lying on a little naze at lowwater. А young Green- 
lander, Emil Nielsen, living at Egedesminde was my aid when measuring; 
eventually he may later on be a guide to the place; still he was not 
present when the + was engraved, and he is not aware of its presence. 
At Upernivik, Prøven and Umanak no balanus were found; instead 
I had to seek for stripes of sea-wrack, which according to my observa- 
tions in different places form quite as sharp lines as the balanus; gener- 
ally the medium upper limit of the sea-wrack is a little below that of 
the balanus. 
