45 



The next pit lies at a much higher level, being about a 

 quarter of a mile N.N.E. of Ashley Church ; in this 10 feet of 

 roughly-bedded chalky gravel is seen, nearly 80 per cent, of the 

 stones being large rounded chalk pebbles, the rest are flint, 

 with a few pieces of quartzite, Gryphsea, &c., the whole assem- 

 blage looking as if directly derived from the Boulder Clay ; this 

 gravel appears to spread over the high ground about Ashley, 

 and may be partially underlaid by Boulder Clay, though a hasty 

 traverse did not lead to the discovery of any direct evidence 

 showing tliis to be the case. 



No doubt however exists about the position of the gravel at 

 Lipsie Wood near Dalham, this has been worked off a platform 

 of Boulder Clay which may be seen near the entrance to the pit, 

 and contains fragments of chalk, flint, quartzite, Septaria and 

 Gryphsea shells. The gravel above is composed of exactly the 

 same materials, and its present face is about 18 feet in height ; 

 some of the layers are coarse and others fine, and there are a 

 few patches of false bedded sand ; the chalk pebbles are mostly 

 small and the flints large, a few of them being slightly worn 

 and rounded ; the general matrix is iron-stained sand, but in 

 one place the stones were impacted in a hard clayey material 

 that looked like re-arranged Boulder Clay. 



It is possible that these Gravels are the southernmost exten- 

 sions of those which spread over the country round Icklingham, 

 Mildenhall, Lakenheath, and Brandon, and are noted for contain- 

 ing flint implements. This district is now being surveyed by 

 my colleague, Mr Skertchly ; and he informs me that though 

 previous writers have described the gravels as confined to the 

 river valleys, they really spread far and wide over the country, 

 only as they are of greater thickness in the valleys, they have 

 been more worked there than on the highlands. Much of the 

 gravel is coarse and unstratified, but beds of sand occur in 

 some places. These deposits overlie the Boulder Clay where it 

 occurs and occupy the highest grounds as well as the lowest ; the 

 land hereabouts however never rises above a height of 160 or 

 170 feet. 



