288 HARRY FIELDING RE ID 



There are no reports of the glaciers of Mount Hood and 

 Mount Adams, but there was a greater snow-fall on Adams in 

 1902 than in 1901; and even in 1901 the snow lasted very late, 

 being still in the timber in the middle of August (Rusk) . 



A dozen small glaciers about the heads of Kern and King 

 rivers in the Sierra Nevada mountains of California have receded 

 slightly in the last few years i^Muir'). The snow-fall in these 

 mountains has been below the average for some years [Le 

 Conte^ . 



In the Rocky mountains of Colorado also the snow-fall for 

 the past three years has been deficient and the summer melting 

 excessive. As a consequence Arapahoe glacier is rapidly retreat- 

 ing, as shown by masses of debris-covered ice in advance of, and 

 disconnected from, the glacier. Also a recently deposited 

 moraine which stands about forty feet above the present level of 

 the ice is so extremely fresh that the fine gravel and mud 

 have been scarcely affected by the rain. Professor Fenneman 

 thinks the ice was level with it within a year, which indicates a 

 melting down of forty feet in that time. Photographs taken in 

 former years show this moraine standing above the ice ; so 

 that, if the conclusion drawn above is correct, the Arapahoe 

 glacier has experienced unusually violent fluctuations within the 

 past few years. This small glacier, with an area of about a 

 quarter square mile only, apparently exhibits the phenomena of 

 the blue bands and stratification extremely welP [Fennema?i). 



A number of glaciers in northern Montana have been visited 

 and mapped during the past summer. They are the remna^nts 

 of much larger glaciers ; only one or two have areas approach- 

 ing three square miles. They appear in general to occupy 

 shelves on the mountain sides and are broader than they are 

 long. So far as could be observed, their moraines show that 

 they are shrinking [F. E. Matthcs, by permission of the director of 



the U. S. Geological Survey ) . 



Harry Fielding Reid. 

 Geological Laboratory, 

 Johns Hopkins University, 

 April 8, 1903. 



'" The Arapahoe Glacier in 1902," this Journal, Vol. X (1902), pp. 839-51. 



