GREYWETHERS AT GRAYS THURROCK, ESSEX. 201
(Fig. 3) and some of the blocks near it, which have been removed
from their original positions (Plate VIII.) The curious waterworn
appearance presented by some of the sides of these blocks is
better shown in photographs than by drawings. The photograph
of the section does not quite include the surface line, though the
irregular pebble bed from two to three feet below it is seen. In
the case of a section in soft strata like this, which is certain
speedily to become obscure, and which may wholly disappear,
FIG. 3.—GREYWETHERS IN PLACE IN CHALK-PIT AT GRAYS, ESSEX, 1903.
and of greywethers likely to be broken up for building purposes
or road-metal, photographs seem to be specially desirable.
Among the greywethers scattered about in front of the
section were some which had in them a few very small flint
pebbles, not larger than hazel nuts. But in no case, among
those seen, were the little pebbles in such abundance as to
suggest that the blocks should be classed with the "pudding-
stone" conglomerate rather than the greywether division of the