74 Robert Chambers, Esq., on Changes of the 
we see a terrace commencing along the east side of the 
valley, and persevering at one height for a considerable 
way, being just about the same elevation with the afore- 
said moor. This terrace is clearly of the same kind with 
that in the Logan valley, not a product of fluviatile de- 
posits, as so many terraces are, but of the long-continued 
washing of the sea against a mountain-side. Descending 
into the Gula valley, we find vast alluvial deposits, generally 
of a muddy character, and sometimes terrassiform. Their 
composition changes as we advance to a fine sand; and this 
again begins to shew a gravelly admixture, the light mate- 
rials having, as usual, been carried farther than those of a 
heavier nature. Near the Meelhuus post-station, which is 
123 feet above the sea, there is a sand terrace fully 200 feet 
high, and from the face of which the material rises in a cloud 
with every gust of wind. The comparatively low terraces, 
resting in huge masses on the skirts of the hills, continue for 
several miles to be very conspicuous, while the higher line on 
the hill-faces is no longer traceable. At length, between 
the Leer and Vollan post-stations, and about 25 miles from 
Trondheim, a highly-remarkable alluvial formation is ob- 
served upon the left or west side of the valley. It has a 
surface perfectly flat, and perhaps an English mile broad, 
abutting against the hills behind, and in front descending in 
a steep grassy bank to the river’s brink. It extends for miles 
along the valley, always preserving one elevation, while a 
terrace of the same height, but less persevering, is seen on 
the opposite side. The termination in the downward direc- 
tion of the valley is abrupt, as if the terrace had been 
broken down at a certain point by the retiring sea ; and here 
there are seen, on the face of the bank below, five several 
minor terraces, extending only a short way. The accom- 
panying sketch will convey a more lively, though still imper- 
fect, idea of these objects. Iam unable to speak with pre- 
cision of the height of this grand alluvial terrace ; but, from 
my observation of its elevation above the Vollan station, 
which is set down as 310 feet by Mr Keilhau, I deem it not 
unlikely that it will prove, on examination, to be coincident 
with the aforesaid line at Oust, and the terrace of erosion at 
