42 Mr. Rose’s Sketch of the Geology of West Norfolk. 
Section from Lynn to Swaffham. 
a. Alluvium. 
No. 1. Vegetable soil and diluvium; 2. Chalk with flints ; 
3. Chalk without flints, including chalk-marl; 4. Gault ; 
5. Inferior greensand; 6. Kimmeridge clay; 7. Oxford clay. 
H. Hardwick Tollgate; M. Middleton; E. W. East Winch; 
B. West Bilney; N. Narborough; S. Swaffham. 
Map of the Valley of the Nar, &c. (vol. vii. Plate I.) 
The map exhibits the localities of the shells of the brick- 
earth; the course of the deposit, described page 33, will be 
readily traced upon it. The marks (™) show the situation of 
the quarries of carstone, and the spots where the brick-earth 
is dug. 
The dotted line across the map traces the course of the 
gault, and serves to correct the West Norfolk portion of the 
Geological Map published by the authority of the Geological 
Society, as regards the course of the inferior greensand, which 
is made to approach too near Swaffham : referring to the ac- 
companying map, the inferior greensand occurs to the west 
of the dotted line only; and to the east of it are the chalk 
strata. 
Note.—Since my paper was sent to the Editors, I have verified my antici- 
pations (vol. vii. p. 181.) respecting the extent inland of the red chalk of 
Hunstanton cliff. Having expressed my opinion to Mr. Durrant of Sand- 
ringham that the red chalk extended to West Newton (the village in which 
the valley of blue gault commences), that gentleman informed me he had 
seen it opened in that part of his parish immediately adjoining to West 
Newton. I took an early opportunity of examining the spot myself, and had 
the satisfaction of seeing its outcrop, which lies in adirect line with the strike 
of the blue gault; and I collected some of its characteristic Belemnites, 
which were very abundant. Mr. Durrant also informed me that it occurs 
at Ingoldisthorpe; and Mr. E. Muggridge has recently stated to me that it 
nas been sunk through in making a well at Dersingham Mill; therefore 
its course from the coast to its junction with the d/ue gault is now pretty 
well traced throughout.—Sept. 11, 1835.] 
