By Professor T. Rupert Jones, F.R.S., F.GS., §e. 185 
- Mr. T. Codrington, F.G.S., notes that “ Fragments of Sarsen or 
Greywether Sandstone are met with everywhere [in the Hampshire 
gravel], and blocks of considerable size are found in the gravel of 
the cliffs between Southampton Water and Gosport, and near 
Southampton, at 170 feet above the sea. A block of puddingstone 
. is stated to have come from the gravel of Hordwell 
Cliff.” Quart. Journ. Geol. Soc., vol. xxvi., 1870, p. 535. 
In the Wilts Mag. (No. 33, February, 1869), vol. xi., p. 348, 
Mr. W. Cunnington stated of one of the imposts of the outer 
circle of Stonehenge (the only one remaining im seté/ towards the 
north-west), near the trilithon that fell in 1797—its “ upper portion 
to the depth of a few inches, consists of a conglomerate of flints and 
sand.” “ Masses of Sarsen made up entirely of a similar conglomerate 
of chalk-flints frequently occur in the neighbourhood of Standen, 
near Hungerford, but they are not found in the middle or southern 
districts of Wilts.” W. C[unnington]. 
One such, but much worn, pudding-stone was found by Messrs. 
H. Nevil Story Maskelyne and W. Cunnington on Barbury Down in 
August, 1886. It is perforated by rootlet pipes between the pebbles 
from one face to another. 
In the chapter on Erratic Blocks in his “ Geology of the 8. E. 
of England,” 1833, pp. 48—50, Dr. Mantell noticed the occurrence : 
of both “blocks ” and “boulders” of the Greywether or Druid 
Sandstone (sometimes containing flints') on the Sussex Downs; 
and many much-worn boulders he observed in the old shingle-bed 
or “ raised beach ” at Brighton. He adds :—“ Upon comparing the 
sandstone of Stonehenge with that of Sussex no perceptible differ- 
ence can be detected; and in this County, as in Wiltshire, they 
have been employed by earlier inhabitants as landmarks to denote 
the boundaries of towns and villages, or to commemorate the site 
of battles,—as sepulchral stones, to perpetuate the memory of their 
chiefs,—and as altars on which to sacrifice to their gods.” A 
Sarsen “placed at the corner of Ireland’s Lane, in St. Ann’s parish, 
forms the western boundary of the Borough of Lewes.” 
1“ The small fragments of a dark-green substance’’ referred to by Mantell as 
occurring in this sandstone may possibly be glauconite. 
