SOILS AND AGRICULTURE OF NORFOLK. 
371 
chalk rock, but such outcrops are mere strips, and there is 
nearly always an admixture with rain-wash from the higher 
level. 
The only chalk area of any size is that extending along the 
north coast from Hunstanton to Wells. Here the solid rock 
is only covered with some four inches of soil consisting 
mainly of sand and small chalk grains. For such soils a 
Table VIII. 
Mechanical analysis of some Crag Soils : — 
Wroxham 
Ran worth. 
Ludham. 
Hickling. 
Soil— 
Stones 
8-2 
6-7 
3-7 
50 
Fine gravel 
247 
2-65 
1-5 
1-44 
Coarse sand 
44-95 
29-2 
21-9 
21-9 
Fine sand 
273 
3322 
36-65 
36-84 
Coarse silt 
10-64 
15-82 
19 53 
1594 
Fine silt 
5-64 
7 - 77 
6-58 
8-44 
Clay 
2-95 
4-00 
6-8 
7-25 
Moisture, organic matter 
and loss on ignition . . 
4-77 
5-31 
5-7 
5-78 
Subsoil — 
Stones 
12-1 
12-2 
3-0 
8-7 
Fine gravel 
2-47 
2-65 
1-64 
1-7 
Coarse sand 
41-75 
30-1 
18-8 
20-35 
Fine sand 
29-3 
3349 
39 1 
38-45 
Coarse silt 
12-3 
18-02 
19-75 
15-55 
Fine silt 
5-1 
6-09 
645 
7-97 
Clay 
3-95 
3-25 
7-95 
10-8 
Moisture, organic matter 
and loss on ignition . . 
2-95 
3-31 
4-01 
4-67 
