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.) Tlie curious watervvorn 

 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 bke this, which is certain 

 speedily to become obscure, and which may wholly disappear, 



KIG. 3. — GREYWETHERS IN PLACE IN CHALK-PlT AT GRAYS, ESSEX, I9O3. 



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 witli the "pudding- 

 stone " conglomerate rather than the greywether division of the 



