406 
MINERALOGY. 
[AI’1\ N 6 I. 
3. Red Granite. 
4. Red Gneiss. 
Remarks .—These specimens are also from the tracts 
surveyed by Captain Scoresby, but the locality unfortu¬ 
nately was lost. The most interesting specimen of the set 
is No. 2., which is a well marked clay-slate, of that va¬ 
riety which we in this country sometimes find in beds in 
mica-slate, or in stratified masses resting upon it. This 
specimen completes the series of the principal primitive 
rocks, and shews that, in West Greenland, as in all other 
great tracts of country, the Granite, Gneiss, Mica-slate, and 
Clay-slate, make their appearance together. 
• General Remarks. 
1. Primitive Rucks. 
From Captain Scoresby’s drawings of the cast coast of 
West Greenland, it would appear that a great portion of 
it, and also of the mountains in the interior, as of the co¬ 
lossal “ Werner Mountains,” are formed of primitive 
rocks. Further, judging from the rock specimens brought 
home, and already enumerated, and considering the gene¬ 
ral nature of the country on the west side, as described by 
Sir Charles Gieseckc, the intelligent and intrepid explorer 
of that desolate region, it would seem that all the principal 
and subordinate rocks of that class, from granite down to 
clay-slate, enter into its composition. These rocks exhibit, 
in this remote region, the same varieties of structure as 
those on the west coast of Greenland, and these again do 
not differ from the primitive rocks of Britain, and other 
t countries; thus affording another proof of the uniformity of 
