5D 
and on this supposition we might expect it to have been 
dropped in a similar position of verticality, for the float would 
have been attached to its edge. But without making such a 
supposition, knowing how frequently icebergs roll over in the 
process of thawing, we may expect them to drop their loads 
indifferently in all positions. 
I was originally disposed to think this mass a boulder, when 
I saw it ten years ago. It was then much less exposed than it 
is at present. I was quite confirmed in that opinion by what I 
saw the other day’. 
The mass seems to be much of the shape of a great punt, 
the prow of which is directed towards the west. The mass is 
so thick towards the stern, 7.¢. at the eastern end, that they 
have not dug through it, but towards the centre the workmen 
told me they found a ‘‘snuff-coloured hard clay” at the bottom 
of the pit beneath the chalk, “hard clay” being the term by 
which they designate the boulder clay. Towards the western 
end of the exposure of the chalk this clay may be seen beneath 
it in the section, enclosing angular lumps of chalk. Towards 
the cottage on the bank the chalk thins out to nothing, the 
boulder clay passing beneath it. 
I believe the lower green sand blocks which occur on the 
north side hereabouts to be no more 7 situ than the chalk. 
The boulder clay between the chalk and Kimmeridge clay 
shows tortuous streaks of bedding, some of them chalky, in a 
highly inclined position, They seem to have been originally 
horizontal as well as the chalk. But no one who has seen the 
Cromer cliffs will think any mode of bedding too strange to 
occur in the boulder clay, or call in the aid of a fault to account 
for it. 
The second part of the enquiry relates to the occurrence of 
this mass of boulder clay in juxtaposition to the Kimmeridge. 
The question lies between a fault and a great channel of erosion, 
made for itself by the glacial drift. 
The only evidence upon this point to be obtained in the ptt 
1 See also note 2, p. 52. 
