Reaction and Succession in Relation to the Plant Covering . 427 
Table XIII. 
Main Beach. 
Sample 
No. 
Location on 
latercd. 
Vegetation. 
p.H . 
Loss on 
ignition. 
0 / 
Total 
carbonates . 
0 / 
S. 1 
Crest 
A renaria peploides, sparse 
7.0 
lo 
% 
S. 2 
„ „ dense 
7*3 
0-40 
o-39 
S. 15 
3> 
„ „ „ under mat 
7 - 2 
— 
— 
S. 16 
33 33 33 
7’3 
— 
— . 
S. 8 
II 
Shingle with Silene maritima 
T'l 
__ 
— - 
S .13 
71 
Beneath mat of S. maritima 
7.2 
— 
— 
S .14 
71 
33 33 33 
7-3 
00 
0 
ib 
1-20 
S. 11 
77 
,, rosette of Rumex trigranu- 
latus 
6.9 
— , 
2-10 
S. 12 
77 
Beneath rosette of Rumex trigranu- 
6.7 
— 
I.90 
latus 
S. 10 
77 
Beneath bush of Suaeda fruticosa just 
7.0 
— 
-- 
below crest 
>9 
77 
Beneath bush of Suaeda fruticosa just 
6-9 
6 -49 
I.36 
on crest 
S. 30 
77 
Beneath bush of Suaeda fruticosa 
2.00 
— 
s .31 
7? 
77 57 7? 77 
— 
3-30 
— r 
S .32 
77 
7? 77 77 5? 
— 
2-1 
— . 
s. 33 
77 
77 77 7? 77 
■ — 
1-4 
— 
S. 34 
77 
77 77 >7 55 
— 
2-0 
— 
S-35 
77 
Fine shingle, shallow-rooted grasses, 
— • 
0-0 
— 
Lepturus , &c. 
S. 6 
7? 
Fine shingle with S. binervosa and 
7 * 1 
— 
— 
Sclerochloa loliacea 
S- 36 
57 
Bare fine shingle 
— - 
0-0 
— 
S. 3 
77 
Fine shingle, bare of vegetation 
7-i 
°-39 
0-83 
S. 4 
77 
33 33 33 near 
embryo dunes 
7-25 
— — 
S- 7 
77 
Bare shingle, landward side of dunes 
7.2 
0-69 
0-23 
S. 36 
57 
Bare shingle 
1*0 
— 
S- 37 
75 
,, close to Suaeda bush 
— 
i -6 
— 
S .38 
77 
33 33 33 
— 
J, 5 
— 
s. 39 
7 7 
33 33 33 
— 
i-i 
— 
S. 40 
77 
33 33 33 
— 
i-3 
— 
S. 41 
Bare shingle 
— 
1. 1 
— 
S. 42 
7 7 
33 
— 
i-3 
— 
S .43 
77 
33 
— 
0.9 
— 
Main beach, p. H., 6- 7-7-3; av., 7*11. Organic, 0-0-6-49 % > av., r, 68 %• Carbonates, 
0.23-2.1 %; av., 1. 14 %. 
Shingle ‘ Lows 
Vegetation . 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
0-4 in. ‘long’ low. Plantago coronopus, f pygmaea 
33 33 
33 
33 
33 33 
33 
3 3 
33 # 33 33 33 
4-8 in. ,, ,, ,, 
33 33 33 33 
3’ 5? 33 5? 
‘ Glaux ’ low 
Low near Lifeboat House, S. reticulata decreasing 
Low at Hood, P. coronoptis, f pygmaea, dead Suaeda 
Terminal low, ‘ Long Hills ’ 
Small low, centre of ‘ Long Hills ’ 
Large „ 
p. H. 
6-9 
6-9 
6.9 
7.0 
6.9 
" 6*9 
6.9 
Loss on 
ignition. 
0/ 
/o 
o-79 
0-52 
0- 8 1 
V3 1 
I "75 
1 - 22 
3*3 
