CHAPTER XXI. 
DRIFT AND ERRATIC BLOCKS OF SCANDINAVIA {continued) . — ABRA- 
SION AND STRIATION OF ROCKS. 
Detritus of Denmark shows the long continuance of submarine conditions, and the di- 
spersion of Boulders at various periods. — Striation, and its excentric direction in 
Norway as well as in North-eastern Lapland, prove the Northern Scandinavian 
Mountains to have been the Centre whence all the Detritus radiated. — Powerful 
denudation of Sweden. — Its southern Promontories and the Islands in the Botlmian 
Gulf worn down and striated on their Northern Faces, and unaffected on their 
Southern Sides. — These results referred, to the passage of the Osar Drift. — Illus- 
tration of the distinction between the Osars, as formed by Aqueous Action only, 
and the great Angular Blocks as transported by Ice-floes. — The Drift in Great 
Britain and Ireland shown to have equally produced the Striation and Polish of 
Rocks as in Sweden. — Reference to the Striated Rocks of Greece; and supposed 
Elevation of adjacent Sea-bottoms applied to the argument derived from the pre- 
sence of Shells of Arctic Characters. — Limits of the ancient terrestrial Icy Tract 
of the North. — Large Eastern and Southern Lands above the Sea and inhabited by 
Mammoths, whilst the Countries covered by foreign Drift were beneath it. 
OlJR chief observations on the Russian and German detritus, such as they were 
when we last returned from those countries, as well as our theoretical views of its 
production being stated, we now proceed to offer the result of a more recent 
survey of Sweden and Norway, which strongly corroborates the conclusions at 
which we had previously arrived. Let us first, however, say a few words on the 
zone of drift which has been lodged upon Denmark. 
The enormous quantities of broken, loose materials which have been poured off 
into the German Ocean may be imagined, from the relics of the detrital masses 
which have been transported to the cliffs of Norfolk and Yorkshire in England. 
