TOPOGRAPHY OF BLAKENEY POINT. 
491 
system (the most extensive of all) rests on the Headland — a 
number of crowded stabilised banks to the West. 
Between these two systems is a deep bay occupied by the 
Pelvetia Marsh (P.M., Fig. 1). This marsh is divided into a 
number of arms or compartments by low lateral shingle banks 
on the North-west side (Fig. 4). These in general are of the 
same character as the banks on the Marams, except that they 
are lower and bear a less complex vegetation covering ; one of 
them (No. 22 in Fig. 2) is shown end on in Fig. 5. 
Between the two Long Hills banks/ at their distal ex- 
tremity, is a smaller salt marsh (H.M., Fig. 1) of interest as 
being the only locality on the Point for Statice humilis. 
From this purely topographical summary of the main features 
of Blakeney Point we may pass on to consider the mode of 
development. 
The Mobile and Stabilised Shingle Beaches. 
In a general way (though subject to some reservation in 
special cases) shingle washed by the open sea remains in a 
state of mobility ; that is to say, storms throw' shingle over the 
crest and scatter it down the lee slope. By the repetition of 
this operation the whole of the length of the main beach is 
FIG. 2. — Diagram of area given in fig. 1 to show the relation of 
successive bank segments. Every fifth segment is numbered (from 
right to left). Dotted lines indicate banks or portions of banks that 
have disappeared or become masked. 
being slowly driven shoreward, whilst the materials of which it 
is composed are not permitted to remain at rest long enough 
for a permanent, continuous carpet of vegetation to become 
established. What applies to the main beach also applies to 
its extremity — deflected as a landward hook by the scour of 
the tide. When, however, the main beach resumes its old line 
of advance the new apical deflection which it in due course 
3. The more westerly of the two may be distinguished as the “ Yankee” bank, in 
reference to a house-boat of that name moored alongside. 
