NORWEGIAN GLACIERS. Ill 



the curve of oscillation ; but on the other hand there are reports 

 by persons, acquainted with the locaHties, that this glacier has 

 been decreasing for some time. 



Among the various glaciological phenomena so conspicuously 

 developed in the northern part of our country, we find that the 

 phenomenon of ice-dammed lakes is not wanting, as a lake of 

 this description was discovered in 1898 in the Glen of Strupen, 

 among the mountains of Lyngen, being dammed up by the 

 remarkable Glacier of Strupen. 



When we place in a table some statements as to the oscil- 

 lation of glaciers in the northern part of our country during the 

 last thirty years, a general decrease is easily perceptible. When 

 Rabot, however, determined both the „debut de la période de 

 retraite" and the „durée minima de la période de retraite", he 

 stated more than we at present really know. Taking into con- 

 sideration the small knowledge of glacier oscillation in this region, 

 we are only justified in enumerating the dates of observed decre- 

 ase. Where two dates are given, the meaning is, of course, only 

 that the total result during the intervening period has been a 

 decrease of glaciers. At the same time we leave it undetermined 

 whether an intervening rush of advance has taken place or a 

 period of â more stationary condition has occurred. 



Glacier General decrease 



Bergsfjord 1876—1898 



Tverdal 1871—1881 



Strupen 1885—1895 

 Nordfjord 1891 



Fonddal 1883—1891 

 Skaviktind 1884 



Blakaadal 1882-1890 



Svartisvand 1873—1890 

 Beierelv 1882 



Sandskar 1885 



