SHANKLIN SAND. 
17^2 
In the south-eastern part of Sussex, tliis form- 
ation occupies but an inconsiderable extent on the 
surface ; and, in many instances, a few insulated 
hillocks are the only indications of its presence. At 
about three miles N. W. of Eastbourne, the green 
sand is covered with a thin layer of gait, which 
occurs immediately beneath the surface ; the sand 
abounds with rounded fragments of coniferous wood, 
that occur in a bank on the road-side, near the Folk- 
ington road. The specimens are incrusted with a 
covering of grey sand containing small pebbles of 
quartz, and internally are of a light reddish brown, 
clouded with darker shades of the same colour. The 
wood is calcareous, and bears a good polish, the 
transverse sections displaying, in a distinct and beau- 
tiful manner, the radial insertions and annular mark- 
ings, which denote the annual growth of tlie tree. 
In some instances, the wood is studded with the 
remains of a small species of Fistulana, of a pyri- 
form shape, about 0*3 inch long, bearing some re- 
semblance to F. lagenula, or F. amjmllaria, of La- 
marck ; the bivalve part of the shell has not been 
detected, but is in all probability enveloped in the 
indurated sandstone with which the tubes are filled. 
This species of Fistulana appears to be new, and 
may be distinguished by the name of F. pyriformis. 
In a bank on the south side of the road, leadino- 
from Selmeston Fair Place to Chilver Bridge, fossil 
wood of the same kind as that of Willingdon, has 
been noticed by Mr. Win. Figg, jun. 
At Chilley, near Pevensey, a bed of sandstone 
very strongly impregnated with bitumen, occurs 
beneath a thick layer of marsh land, or silt. It was 
