PEOPLE OF THE SUBMERGED FOREST 31 
/lower peat 
& forest bed 
itself on the low-lying lands surrounding the harbour. 
Near the harbour are the offices and the museum of the 
Societe Jersiaise, a centre of prehistoric research. The 
Jersey Society has devoted particular attention to the 
Megalithic monuments and other records of the Neo- 
lithic period in which 
the island is particularly 
rich. Among its mem- 
bers none have given 
their time and ability to 
the study of this period 
with greater success 
than the curator of the 
museum, Mr J. Sinel.^ 
We propose to follow 
him to a deep excavation 
which has just been made 
for the foundation of a 
new building in the 
lower part of the town. 
Mr Sinel's diagram (fig. 
14) shows the various 
strata which have been 
cut through ; they have 
a certain degree of corre- 
spondence with the sec- 
tion at Tilbury. Beneath 
the surface layer of sand 
and clay, about 4 feet 
deep, ,s a layer of peat ^'-^'rlf LTsS tuX'S°a 
containing fragments ot sind). 
pottery of the Roman 
period. That layer of peat was a "land surface" in 
Roman times. Beneath the peat comes a stratum laid 
down by the sea— made up of clay, containing stones y 
and shells. That stratum bespeaks a passing period of 
subsidence, which might have occurred at Tilbury and 
left no trace behind. "Then, beneath the marine stratum 
' See reference, p. 24. 
MARINE . FORMATION- <j 
STONE -::*- 
4to6 
to3f? 
2 to 5ft 
Stol-tft 
3 to 5ft 
6to8f*^ 
1-^7=^ CLAY 
^=, 3 to 4ft 
