4.
but it was not to be.
To Mrs Frances Bartrop we extend our sympathy in her
great loss.
A. J. Pettifer
---oOo---
Contributions to the Essex Naturalist:
Bartrop T. H. C. (1962) Malaria, Mosquitoes and the
Essex Marshes. Essex Nat. 31. 35-51
Bartrop T. H. C. (1963) Nature Conservation, with
Special Reference to Essex.
Essex Nat. 31. 85-98.
Bartrop T. H. C. (1965) Some Natural History of
Domesday Essex. Essex Nat. 31 237-244
RECENT DEVELOPMENTS AFFECTING OUR VIEWS ON THE GLACIAL
HISTORY OF SOUTHERN ESSEX.
Our knowledge of the glacial history of Essex largely
derives from the work of Clayton (Proc. Geol. Ass. 1957
and Trans. Institute Br. Geographers 1960) who recog-
nised three advances of ice into southern Essex. The
first advance of the ice penetrated southwards to the
Hanningfield area and the deposits of the glacier are
known as the Hanningfield Till.
After the decay of this ice, a more normal landscape
developed and during a long period of erosion, rivers
cut valleys deep into the Hanningfield Till.
In the next phase, the ice penetrated to the Chelmsford
and Maldon areas, where the ice front fluctuated. The
ice initially reached round the western flanks of Danbury