ESSEX NATURALIST, vol. XX., pi. IV. 
f To fact p. 54 . 
CAR WOODLAND ALONQ 
EDGE OF MEADOW ZONE 
OAK- ASH WOODLAND ON BOULDER CLAY PLATEAU. 
DRY GRASS 8 ; THORN SCUB ON CHALK SLOPES. 
THORN SCRUB. 
MARSH MEADOW-LAND PASSING \ PREHlsTOR . c EAr „wo«K camp. 
INTO FEN. I Ni f . _ 1 _ 
CAR WOODLANOV 4, 
■A ^ 
HUNTERS SETTLEMENT 
NEAR PONO. 
;S- Z-• -• ~m~a Z 9 - ~ 
BoTuL^RrjcTA^fT^- 
1 I 
rzj' xlrr 1 ~r~ lj —T/ r i ^ 
, ////>/>"’ t*yf t if,hr,, ,S'~,~er7i,i,inn >ri?>llf/itPer77tp-r~* 
--'1 •.) - 
l ■- •* ] V :X l "111 - ] Ulll ill 111 1 
A^E R - 's ATU tR ATi'l ONj' L ElV ELi" ""T ' "(.f 
1 t_i JLLi__Luilj.: in 1 ^rjrli-TilTrxjii:; 
-r. • ,v- " ] / • 1 ; 1 1 -_- 
) ! (_ S 1 V 
\ - 1 
SURVIVAL OF THE 
PRIMITIVE CHALK FLORA 
ON THE SLOPES OF LYNCH ETTS, 
OR ANCIENT CULTIVATION 
TERRACES, AND ON THE SIDES 
OF RAILWAY CUTTINGS. 
UNDRAINED MEADOWS PRESERVING 
SURVIVALS OF THE PRIMITIVE VALLEY FLORA 
ON ALLUVIAL SOIL | 
DISTANT WOODS - GAME PRESERVES - WITH SURVIVALS OF OAK-ASH 
WOODLAND FLORA 
HEAVY BOULDER CLAY ARABLE LAND 
CHIEF CROPS WHEAT AND BEANS . 
LIGHT CHAK SOIL 
PRINCIPAL WPS — 
POPLAR AND OSIER 
WOODS 
REPLAC1NQ THE E ARLY CAR VEGETATI ON ,, BARLEY 8 ? VlNFOIN. 
NUMEROUS SCATTERED 
SUPPLIED BY PONDS AND 
FARMS 
DEEP WELLS 
FARM POND WITH 
SURVIVALS OF THE 
PRIMITIVE WATER 
FLORA OF THE 
BOULDER 
CLAY. 
Synthetic Diagrams of the Cam Valley, showing the relationship of the incipal factors, Geology, Water and Vegetation, that affected Human 
Settlsmenin this region. 
(i) in Neolithic Times .2) in Modern Times. 
{Diagrams by Guy Maynard, Esq., F R.A.I.) 
