GLACIAL FEATURES OF ALASKAN COAST 433 
figuration of their valleys. Changes within the past century are less 
well indicated. 
The subject of glaciation should not be left without a statement 
regarding the recent changes in the glaciers. In this region no earlier 
measurements or surveys of sufficient accuracy have been made, and 
we are therefore without precise data. The fact that each of the 
glaciers examined is bordered at its end by a terminal moraine, which 
is separated from the ice itself by a barren space, indicates that the 
lobes have recently retreated through distances varying from one 
quarter of a mile to one mile. The Yakutat Glacier is bordered by a 
lake, and the end of the ice is so badly broken as to give one the impres- 
sion that it is disintegrating in a condition of relative stagnation. It 
is obvious at least that none of these glaciers is now actively forwarding 
its lower end. In no case did we find glaciers plowing up forested 
moraines and showing other unmistakable signs of advance, such as 
Tarr reports of the Malaspina.’ It will be a matter of much interest 
to watch these glaciers east of Yakutat Bay, and see if they follow 
the example of the St. Elias lobes, or whether they evince no sym- 
pathy with them. This will go far toward solving the question as to 
whether the advance of the Malaspina is due to a local cause or to 
some general climatic influence. 
tR.S. Tarr, Science, N.S., Vol. XXV (1907), pp. 34-37- 
