144 SEFSTROM ON THE SCANDINAVIAN MOUNTAINS. 
Norte. 
[Whatever opinion may be entertained with regard to the 
reasonings of Mr. Sefstrém, and the hypothesis which he pro- 
poses, it has been thought that the detailed observations con- 
tained in his memoir would make a translation of it acceptable 
and useful, with a view to further investigations which may be 
in progress for the elucidation of the subject of the mountain- 
furrows. 
Notices of polished and furrow rocks at Miami, in North 
America, and in the forest of Fontainebleau, have lately appear- 
ed in Silliman’s Journal for January 1841, and in the Comptes 
Rendus, t. xiii. p. 69.—Ep.] 
