280 



THE BRITISH ISLES. 



entrapped in hollows on the mountain sides, from which they cannot escape. 

 Torrent ruins and violent snow-storms are phenomena of ordinary occurrence, 

 and iu the depth of winter it is often impossible to ascend the highest summits. 



Fil^. 138.— llYI-SOGKAIMUCAL M.VP OF TUB CuMBUIAN MOUNTAINS. 



Scale 1 : 634,000. 



The boldest shepherds have refused at times to climb the mountain-tops in order 

 to consult the rain gauges which have been placed upon them.* 



• J. Fletcher Miller, Philosophical Transactions, 1851. 



