Baron Welden's Account of' Monte Rosa. 



155 



After giving an account of the trigonometrical operations among 

 the Alps, and the longitudes, latitudes, and heights of the principal 

 mountains and peaks, Baron Welden treats, at great length, of their zool- 

 ogy, hotany, and topology, of the vegetation of the mountains, of the line 

 of perpetual snow, and of their glaciers, torrents, and mines. He gives 

 also a very interesting account of the inhabitants of the valleys around 

 Monte Rosa which is encircled by a German population, who have 

 preserved their customs and language entire. This German population 

 to the south and east of Monte Rosa amounts to 9000, of whom 4000 

 inhabit the valley of the Lys, where there are two parishes and several 

 hamlets. The other 5000 are dispersed in the parishes of Allagna and 

 Mucugnaga. 



The plates of this work are very interesting. Besides the map of the 

 triangles, there arc five small views of Monte Rosa executed by the C'a- 



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