Relative Level of Sea and Land in Scandinavia. 79 
above the sea, besides a narrow shelf, “ like the towing-path 
of a canal,’ about 90 feet above the sea. 
Proceeding in a northerly direction, M. Bravais found at 
Krognaes and Talvig an alluvial terrace at 185:5, and an- 
other whose mean height was 80°5 ; and these he considered 
as representing the two others, though at lower levels. 
Advancing in the same direction, he found at Komagfiord 
two lines of erosion on the faces of the mountains, respec- 
tively 169°6 and 67:3 feet above the sea. 
Still further advancing, he found the same two lines on 
the precipices of Quaenklubb, at 162°3 and 60 feet ; at a place 
on the islands of Seiland and Qualée at 139-3 and 54 feet. 
Finally, at Hammerfest, the two lines appeared at respec- 
tively 92°3 and 46 feet. Thus it appeared that there was a 
constant decline in the elevation of these markings from south 
to north. M. Bravais likewise observed some less distinct 
tracings of the same kind,—a dark-coloured band on Kong- 
shavensfield, near Bossikop, at 128 feet ; and one further on, 
upon the same side of the fiord, at Sortbierg, at 81 feet; a 
line of erosion between Storvignaes and Krognaes, at 126 
feet, and one at Talvig of 141 feet. He regarded these as 
indications of an intermediate line which had failed to be ex- 
pressed throughout the intermediate space, but which re- 
appeared at Hammerfest in a terrace of about 69 feet. 
It may be remarked that M. Bravais used a barometer for 
his measurements, adopting usually the mean of several ob- 
servations, and that he took as his basis a point 0™:6 above 
the line formed by the sea-weed on the rocks, having found 
that line 64 centimetres above mean height of the sea. 
M. Bravais inferred that there had been at least two dis- 
tinct angular movements of elevation in the region compre- 
hended by the terraces, the first being measurable by the 
difference of heights between the upper and lower terrace, 
and the second by the height of the lower terrace at various 
points above the sea. The following table indicates the 
amount of the first elevation :—- 
