Reaction and Succession in Relation to the Plant Covering , 425 
Table XI. 
Lateral Shingle Hooks. 
Satnple 
No. 
Bank 
No. 
Location on 
lateral. 
Vegetation. 
p.H. 
Loss on 
ignition. 
0/ 
Total 
carbonate. 
0/ 
S. 16 
XX 
Crest 
Bare shingle and sand 
7.6 
/o 
0.77 
to 
0.96 
S. 17 
5 > 
>> 
V 11 11 
7.6 
0-65 
0.51 
S. 18 
,, 
11 11 11 
7*5 
0-19 
0-82 
S. 19 
JJ 
11 11 11 
7.6 
o *57 
0-87 
S. 20 
JJ 
11 
11 11 11 
7.6 
0.44 
0.50 
S. 21 
V 
11 19 11 
7.6 
0-30 
1-22 
Av. 
organic, 
0-486 % ; range, 0-19-0-77 %. Carbonates av., 0-813 
% 5 range, 0-50- 
•1.22 %. 
X.23 
XVII 
Crest 
Bare shingle close to Britannia 
7-5 
o *53 
0*35 
X.20 
55 
Arenaria peploules patch due 
7 - 1 
0-32 
0.05 
S. of Britannia 
X. 19 
V 
5 ? 
A renaria peploides , Silene 
7 * 1 
— 
0-08 
maritima 
X.25 
J J 
Crest above X. 24 
7-2 
0.13 
0- 1 1 
X. 24 
57 
Slope 
Slightly sandy, with P. corono- 
7 -i 
— 
0.05 
pns,f. pygmaea 
X. 21 
?> 
Drift line 
On landward drift line N. of 
7.2 
— 
— 
X. 20 
X. 22 
>> >> 
On seaward drift line S. of 
7-05 
— 
— 
X.20 
Av. p. H-, 
7.18 % ; range, 7.05- 
-7-5 %. Carbonates av., 0-16 %. 
Organic av , o- 
32 %. 
X. 26 
XVI 
Crest 
Arenaria peploides , Silene 
7 -o 
— 
— 
X. 28 
XV 
Base of slope 
Suaeda fruticosa zone 
7*3 
— 
— 
X. 27 
V 
U pper part of slope 
Statice binervosa zone 
7* I 5 
— 
— 
x.41 
XII 
Crest 
Proximal end, S W. of ‘ Y ankee ’ 
T l 
1.8 
0-03 
X. 41 a 
JJ 
11 
11 11 11 
7 - 1 
1.79 
— 
X.42 
}> 
1 ) 
Middle, 80 yds. S.W. of 
7.2 
7.12 
0-06 
1 Yankee’ 
X. 43 
>> 
11 
Distal end, 200 yds. SW. of 
6-8 
22-42 
0-16 
‘Yankee’ 
X. 29 
5? 
11 
Turfy patch, Sedum, P. corono- 
6*3 
6-02 
0-09 
pus, Cladonia 
X. 33 
)) 
11 
Very firm shingle, moss and 
6-2 
— 
— 
Cladonia 
X- 35 
5) 
11 
Very firm shingle, lichens about 
6.7 
3-57 
0-01 
25 yds. S.W. of ‘Yankee’ 
X. 36 
„ 
Open veg. 3 yds. from X. 35 
6.7 
— 
— 
X.34 
>> 
11 
Loose shingle near X. 33 
6*3 
— 
1 — * 
x. 30 
5 » 
,. _ „ X.29 
6-8 
— 
— • 
X. 6 
?} 
Binervosa zone 
Dense Statice binervosa 
7.0 
0.47 
0-01 
X.31 
Drift line 
Armeria and Silene 
7 *o 
2.99 
0-27 
Av. p. H.,6.72 (range, 6*2-7. 2). Av. orgnnic, 7.12 % (range, 1-79-22.46 %). Carbonates av., 0-103!%. 
X.44 
VIII 
Crest 
Turfy vegetation, proximal end 
6-75 
6.45 
0-04 
X.45 
5 ) 
11 
,, „ middle 
High elbow, distal end 
6-o 
11.90 
0-03 
X. 46 
y> 
11 
5*9 
25-06 
0-0 1 
X. 46 a 
11 
11 
11 n 
28-90 
0-00 
X.17 
1 1 
Drift zone 
Cladonia , Armeria , Silene 
6-9 
3.88 
0-07 
X. 18 
V 
Atriplex littoralis, Triticum 
7.6 
16-14 
3*55 
X- 37 
11 11 
11 11 11 
— 
4.20 
X. 40 
?> 
11 11 
11 ' 11 11 
Cochlear ia danica and Triti- 
cum 
— 
4 x -5 
— 
X.38 
)) 
Slope 
7*3 
— 
0-14 
X. 16 
5 ) 
Binervosa zone 
Statice binervosa 
7-35 
2-09 
O-OT 
x. 39 
>> » 
,, „ and Armeria 
7 *i 
— 
O.07 
p.H., 5*9— 7-6 ; av., 6.87. Organic, 2-09-41.5 %; av., 16-99 %• Carbonates 0-00-4-2 %; 
