18
THE ESSEX NATURALIST
Fig. 1. The Conglomerate Track
never found attributed to any other rock. It became evident that
the choice of one particular kind of easily-recognised material for
the stones marking this track was deliberate, intended to act as an
infallible guide to the traveller.
The boulders are not shaped in any way, neither are they uni-
form in size. Most have the appearance of waterworn and