IN PART OF NORTH-WESTF.RN ESSEX. 2T3 



or that an enormous mass of gravel had slipped over the relics. As, 

 however, the brick-earth is not of a kind agreeing with ordinary rain- 

 wash, but appears to have been formed /// si/it, the latter supposition 

 (unless we refer them to Pre-glacial interment) seems to be the only 

 one admissible. 



This section is^ I believe, at a greater elevation than any treated 

 of by Prof. Prestwich at Braintree. As a disturbance, therefore, has 

 probably occurred at that elevation in Post-glacial times, should it 

 not rather modify his statement as to the gravels at lower elevations, 

 "round which the glacial beds wrap" {/.c. p. 134) — the more so that 

 no true Boulder Clay is found in the valley there ? 



The Westleton series extends to the summit of the hill, but at 

 places on the top it has a capping of about two feet of Boulder Clay. 

 The total thickness of Westleton Beds there cannot be less than 

 eighty feet, as stated by Prof. Prestwich. 



The Boulder Clay, trending in a north-westerly direction, attains 

 a considerable thickness near Panfield Wood, but at a point about a 

 quarter of a mile north of that wood it has thinned out somewhat, 

 and under two or three feet of Chalky Clay the Westleton Shingle 

 appears again. It is here of the ordinary pebbly character and 

 unaccompanied with sand for the first six feet, the depth of the 

 section. 



On Clap-bridge Farm, south-west of Braintree (marked erroneously 

 on the one-inch map as "Mill-farm"), at an elevation of about fifty feet 

 from the river, there is an exposure of about four feet of Westleton 

 pebbly gravel. No Boulder Clay exists here now, but a large lump 

 of Lower Tertiary Sandstone lying near the surface gives evidence of 

 its former existence. 



In the cutting for the goods-siding at Rayne there is a small 

 section of Westleton Gravel. The gravel-pit marked on the one-inch 

 map south of Rayne station is not free from a suspicion of (ilacial 

 admixture. 



Passing on to Felstead Station, there is a low cutting there of 

 not more than six feet of fine shingle, undoubtedly of ^\'estleton 

 age. Although not by any means a fine or typical exposure, it is 

 worthy of special notice, because from it have been obtained vege- 

 table remains. This was a piece of wood of about six feet in length, 

 and flattened into a thin lamina l)y pressure. At some i)arts it is 

 said to have had the consistence of coal, but other i)arts clearly 

 showed its woody fibre. I am indebted to the platelayers and 



