2 G. F. Wright—The Muir Glacier. 
loose material,—evidently glacial debris,—and are in striking 
contrast to most of the islands and shores in southeastern Alaska. 
These, also, like all the other land to the south, are covered 
with evergreen forests, though the trees are of moderate size. 
The islands and shores in the upper part of the bay are entirely 
devoid of forests. Willoughby Island, near the middle of the 
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bay, is a bare rock, about two miles long and 1,500 feet high, 
showing glacial furrows and polishing, from the bottom to the 
top. Several other smaller islands of similar character in this 
part of the bay show like signs of having been recently covered 
with glacial ice.. 
The upper end of the bay is divided into two inlets of un- 
equal lengths, the western one being about four miles wide and . - 
extending seven or eight miles (estimated) in the direction of 
