til-t I III Anil flcilii (ii i>lii(/lsf. OctolxT, IS'.il 
and follow this now (liicction. Tlic short inoniiiu' which i):issos just 
across tlio front of tlu' (JirdU'd ulncicr inside of this one was 
formed at the same time, mainly from material from the rapidly 
disintegratinji mountain ridge west of the nioutii of the Girdled 
illaeier. That the outward How of the Granite canon glacier did 
not continue long after the stoppage of the flow from Main valley, 
is shown l)y the short distance traversed l>y the moraine emerging 
from the canon and flowing in this direction. 
If there is the present slow flow of the ice in .Main valle}' al- 
ready spoken of. a flow in both directions from the highest point 
of tlie ice. tliere must l»e a correspontling slow flow of the ice l)ack 
into Granite canon. Starting at the front of Mnir glacier, and 
proceeding toward the canon, the surface of the ice is found to 
slowly increase in liight till, about ten miles from the front, an 
altitude of about l.:>0() feet A. T. is reached. From this point 
further progress to the northwest is over a descending surface. 
This descent continues up Granite canon as far as the e3"ecan see. 
Two small glaciers appear on the southern slope of the moun- 
tain mass lying between Granite canon and the First Northern 
branch. The most western of the two — marked Glacier f) upon 
the map — merits lu'ief attention. Tt has retreated some little 
distance up its valley, and its lower portion is covered from one 
side to the other with debris, after the manner of the Dirt glacier. 
Upon tlie ice of the main mass in the ami)hitheatre whicli lies 
across the opening of this glacier's valley, a moraine a|)i)ears 
curving across the opening from one side to the other, the coun- 
terpart of the one in front of the (rirdled glacier. The motion 
appears to have been from the west, the material being supplied 
from the southern slope of Snow dome, the mountain to the 
west of this glacier. A recent flow of ice from the First North- 
ern l)ranch across the opening of this valley must have taken 
place, carrying with it the disintegrated material that fell from 
Snow dome \\\)(n\ the surface of the ice. 
RKCENT RKCKSSION OF TIIK (iI,.\CIER. 
Tlie evidence that very recently Mnir glacier has had a vastly 
greater extent is remarkably plain, and has been well summed up 
by Prof. AVright. The reason for its consideration here, is that 
further evidence has been procured. 
Direct rr'nhiici. — Prof. ^Vrigllt"s measurements, and photo- 
graphs taken by Mr.. Haldwin of his party furnish a means of 
