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have pedestals which do not fit the boulders ; in other words, 
a pedestal may look narrower than a boulder when viewed’ 
endwise, but wider than a boulder when viewed sidewise ; 
many boulders resting on flat surfaces may be seen projecting 
over miniature cliffs, : and many have two or more pedestals 
with vacant spaces between them which could not have been 
excavated after the arrival of the boulders, because the latter 
would have protected the underlying rock-surfaces from the 
action of rain. In the case of the Norber boulders, which 
rest on divided pedestals with one or more vacant spaces 
under which preserved glacial striae may be seen on looking 
in from without, it is clear that the vacant spaces could not 
have been excavated by lateral pluvial action after the arrival of 
the boulders, because the pluvial or any other kind of aqueous 
action would have obliterated the striz. 
The following figures will give an idea of the more typical 
supports of boulders on Norber plateau :— 
Fig. 2 represents a boulder resting on a flat limestone rock. 
The “depression on the mght probably existed before the 
boulder came into its present position, otherwise there ought 
to have been likewise more or less of a depression on the 
left. 
Fig. 3 shows a boulder mainly resting on flat rock, with a | 
small subsidiary pedestal. It is clear that both must have 
existed before the arrival of the boulder. 
