420 
SCOTT'S LAST EXPEDITION 
The regions more especially investigated in the two 
sledge journeys of the Western Geological Parties in 191 1 
and 191 2 were the following : 
{a) The Ferrar and Taylor outlet glaciers (77*^ 40'). 
{b) The Koettlitz ice delta and its hinterland (78*^ 20^). 
{c) Granite Harbour and the Mackay outlet glacier 
(77°)- 
{J) The Great Piedmont glacier between Granite 
Harbour and New Harbour (77° 20'). 
Each of these regions presented its own peculiar 
topography, and the four were diverse enough to embody 
almost the whole cycle of glacial erosion within their 
domain. 
(a) The Ferrar and Taylor 'Outlet'' Glaciers and the 
Dry Valley. — These two glaciers are now connected by 
an ice col near Knob Head Mountain, but were originally 
