Prof. T. C. Chamberlin. 
41 
active or not. It is quite evident that an exaggerated impression 
may easily be gained by simply observing the numbers of the ice- 
bergs that are held in the fixed belt of ice along the shore. 
Many of the icebergs which we observed in the bay immediately 
east of Cape York, on the upward trip, were still there when we 
returned, and are doubtless there yet. 
Very large icebergs in considerable numbers were seen off the 
Crimson Cliffs, but the head of Baffin Bay north of Wolsten- 
holme Sound contained relatively few. In Murchison Sound and 
its dependencies a scattered fleet of moderate dimensions was 
being held by the sea ice awaiting their discharge through its 
breaking up. In Inglefield Gulf a very notable cluster, embrac- 
ing some hundreds, were grounded upon the shoals south of Red- 
cliffe Peninsula. In the inner reaches of the gulf, a considerable 
number of quite large tabular masses, derived from the Heilprin 
and adjacent glaciers, were observed. It is not to be overlooked 
that in Inglefield Gulf all that had been discharged since the pre- 
ceding summer, together with such as had been held over from 
former years were still retained, as none found escape before 
August. The total iceberg product of the Gulf region, while 
large, is after all not very impressive when compared with the 200 
or more miles of ice border (embracing that on- land) by which 
the gulf is surrounded. 
The foregoing statements relative to icebergs have something 
of indefiniteness because opportunity was not afforded for syste- 
matic estimates of their numbers or masses. They can only have 
a slight and very general value. 
Glaciers. 
Aside from the great sheet of inland ice which covers the in- 
terior of Greenland, there are numerous local ice-caps as well as 
true Alpine glaciers. The distinction between the last two classes 
is perhaps worthy of passing note. In the one the snows accu- 
mulate upon limited plateaus which are but dissevered portions 
of the main plateau of Greenland. In the other, the snows col- 
lect on the slopes or in the gulches or amphitheatres of the higher 
