HUBBARD GLACIER 65 



distance by their contrasted colors black, yellow, purple, 

 green, blue-black, and orange or rusty. These bands had 

 not the ordinary arrangement of parallel medial moraines, 

 but tended rather to contour the slope, and the search for 

 their origin and meaning would make an interesting and 

 profitable study. Some of them occupied ridges and others 

 hollows, suggesting inequality in their ability to retard the 

 melting of the ice beneath, but the whole surface was 

 rugged in detail, exhibiting a continuous series of hum- 

 mocks and kettles. 



The map given in plate vm was made by Gannett from 

 a series of stations at the south, the northern shore of Dis- 

 enchantment Bay being inaccessible by reason of floating 

 ice; and some of the details, especially of the moraines, 

 were added by the aid of a series of photographs made 

 from a high station on the mainland near Osier Island. 

 Russell in 1891 (September 5) stationed his camera on 

 Osier Island; and a comparison of his photographs with 

 mine (June 22, 1899) shows that there was little change 

 in the general character and condition of the ice cliff. My 

 views place it one or two hundred feet farther back than 

 his, and this difference would probably be increased if the 

 proper correction for season could be applied (p. 22), but 

 in any case the estimate of the whole retreat would not ex- 

 ceed a few hundred feet, and would be very small as com- 

 pared to the retreat of Nunatak Glacier in the same period. 



A photograph taken from Haenke Island in 1899 is also 

 comparable with one from the same station by the Cana- 

 dian Boundary Commission in 1895,* each showing the 

 relation of the northern part of the ice front to the features 

 of the contiguous mountain face ; and in this case also the 

 recorded change is small. 



Another series of photographs were made by the U. S. 

 Fish Commission in 1901, chiefly from Osier and Haenke 



1 No. 13, on page 5 of vol. 17, official album. 



