WILTSHIRE. — ON THE RED CHALK OF ENULANU. 271 
Uuderueatli the Red Chalk of Hunstanton occurs a yellow and 
brown pebbly saodstoue, which was formerly supposed to contain no 
organic remains. Mr. C. B. Rose of Yarmouth, however, has obtained 
many. 
This bed is termed in those parts "carstone," and much employed as 
a building-material. Tlie cottages in that neighbourhood and on the 
road from Lynn seem at a distance as though they had been con- 
structed of masses of gingerbread, so great is the similarity in colour 
and appearance. 
The length of the Red Chalk, from end to end, at the Hunstanton 
Cliff is about 1,000 yards, and its greatest elevation at the point where 
it attains the top and quits the cliff is thirty-seven feet ; hence its rise 
is very gradual, since its first appearance is neaiiy on a level with the 
beach. 
There are two other things worth observing at Hunstanton. One is 
the lighthouse, which is upon the dioptric principle, the light being 
transmitted out to sea by means of glass prisms instead of the ordinary 
metal reflectors ; and the other is a vestige of a raised sea-beach on 
the clift's composed of rounded fragments of White and Red Chalk 
immediately reposing on the green sand. It is situated at the south- 
ward of the point where the Red Chalk crops out. 
We will now, if you please, quit Hunstanton, and proceed towards 
Lynn, keeping in the neighbourhood of the coach-i-oad. 
If we could dig up the ground when we were within eight or nine 
miles of Lynn, we should still see our old companion at our feet, for 
the Red Chalk has been recognised at the villages of Ingoldsthorpe 
and Dersingham. 
We shall soon meet it no more. At Leziate, a little to the north- 
east of Lynn, it becomes extinct. Mr. C. B. Rose, who always thought 
the Red Chalk would prove to be the equivalent of the gault, and 
who argued from the evidence of fossils and from the direction of 
the outcrops that the true gault and the Red Chalk must ultimately 
meet, — Mr. Rose, I say, has informed me that he has observed the Red 
Chalk and the gault incorporated together at Leziate. Henceforward 
to the south the Red Chalk is no more seen. 
Thus, then, we have come to the termination of our journey. We 
have noted the beginning and the ending of the Red Chalk, we have 
