SOLIFLUCTION 



105 



surface showed the same streakiness that I had seen before in Bear 

 Island, beautifully developed, and which was evidently due to dis- 

 placements of the soil. 



North America.— 1 have had no time for looking into the immense 

 American literature for notes indicating observations on solifluction, 

 and shall be most thankful for any information on this subject 

 relative to that continent where the land forms are so splendidly 

 developed and so admirably surveyed. 



Fig. 3. — Fox Bay, West Falkland. Scenery showing the vast plains and the 

 low, rounded mountains. 



The only observation from the United States that I am able 

 to mention here is cited by James Geikie in The Great Ice Age, 

 and is taken from Hayden, who has given a very illustrative de- 

 scription of solifluction in some valleys in the Rocky Mountains. 

 These valleys are 



covered thickly \vith earth, filled with more or less vv^orn rocks of every size, 

 from that of a pea to several feet in diameter. The snow melting upon the 

 crests of the mountains saturates these superficial earths with water, and they 

 slowly move down the gulch much like a glacier.^ 



^Geological and Geographical Survey of Colorado, 1873, p. 46. 



