300 



THK ICE AGE AND ITS WORK. 



which biive been shown to indicate erosion rather thcUi submergence 

 are ])resent in this hike as fully as iu all other Alpine valley lakes aud 

 iinniistakably point to the glacial origin of all of them. 



On the whole, 1 veiiturt to claim that the facts and considerations 

 set forth in this i)ai)er show such a number ot distinct lines of evidence, 

 all converging to establish the theory of the ice erosion of the valley 

 lakes of highly glaciated regions — a theory firjit advocated by the late 

 Sir Andrew Kaiusay — thai that theory must be held to be established, 

 at all events provisionally, as the only one by which the whole body of 

 the facts can be explained and harmonized. 



