A HISTORY OF SUFFOLK 



long anterior action, which probably ended by scattering them over a wide 

 surface of land rather than gathering them into a gravel, and that they thus 

 had a second long exposure to atmospheric conditions before arriving at 

 their present resting-place. Our ovates, themselves probably divisible into 

 several sub-periods, belong to a period of palaeolithic life wrhich is unrepre- 

 sented in the Thames Valley, teeming as this latter does vv^ith remains of 

 ' drift ' man. After being made they were exposed on the surface of the 

 earth for a time sufficient to induce colour changes, far beyond anything that 

 we see in the oldest neolithic flints. Then they were subjected by nature to 

 some very rough usage which markedly chipped their edges. They then lay 

 exposed to the air and the elements for a further period long enough to 

 induce white porcelainouB patination of the chipped surfaces. Then came 

 the diluvial conditions which washed them into their present resting place 

 at Warren Hill ; since which time many great changes in the earth's 

 surface have occurred, including the vast denudation which gave rise to the 

 Fen district ; and later on (as we shall see) the scooping out of the valley 

 of the present River Lark and its affluents. This gives us some hint of 

 the vast periods involved in the consideration of ' drift ' man. 



We will now pass to the next series of gravels on the ridge, viz. : those 

 at High (Warren) Lodge,' by the side of the Mildenhall-Thetford road. 

 They lie about three-quarters of a mile north of Warren Hill, and the 

 summit of the ridge is about 1 20 ft. above the Ordnance datum, and there- 

 fore about 50 ft. higher than the present upper limit of the Warren Hill 

 gravels. The situation of the High Lodge gravel is, however, a very 

 remarkable one, and is worthv of careful description and study. 



JUj2h_ 



O iaarammaJUc SlUtcli, of the, ridg e 



FhlXtnuffJ hmmii Oxrbndyt* the fern 

 VYtir ezzzz 



JecliofV oL Hid^ e (hroujQh MU^jt/i MUL 



TyarOnund ktmsnijQnnbrtdgeifht tbrs 



Sectimi. of Pidqe Vun i gh High Lodpe Mtjl 



-£av 



j\j n»4 plan and 



bccrioni art purely di<i^rontinaA« 

 Ond art qor draMn r^ ftcal^. 



Sections of thl Warren Hill Ridge 



' This name is given to avoid confusion with another ' High Lodge ' about 2 miles away on the Eriswell- 

 Elveden Road. 



242 



