BARRY GLACIER 
9 1 
with tidal current must be active. The forward flow of 
the ice tends to narrow the strait, and this constriction, by 
increasing the speed of the tide, enhances the melting 
power of the water. The fact that the glacier was able 
to occupy two-thirds of the width of the fiord indicates 
that its forward movement was strong. 
FIG. 47. PART OF FRONT OF BARRY GLACIER. 
Showing the relation of a medial moraine to a great oblique dirt band. Photographed by 
E. H. Harriman from the ship, June, 1899. 
|P=> 
Its moraines were of small relative importance, but 
a belt along the western margin was darkened by drift 
and there 
were two 
medials. One 
of the latter, 
exhibited in 
section in fig. 48. CAVES IN FRONTAL CLIFF OF BARRY GLACIER, 
the face of From a photograph by W. R. Coe. 
the cliff, was seen to be the surface outcrop of a sheet 
of drift-charged ice which extended obliquely down¬ 
ward, passing under the western portion of the stream 
(see fig. 47). 
The cliff was further diversified by a number of caves 
at the water’s edge, supposed to be the mouths of englacial 
streams. 
