The Archaeological journal . top of ShootersHill, this appears to have been the sea, but as it gotlower it became estuarine, leaving terraces, now onlyi*epresented by patches of gravel at different that at 400 feet on Shooters Hill down to that at100 feet on Dart ford Heath and Cray ford no implementhas been procured in situ, but I found a large imple-ment (of the broad Abbeville type) at an elevation of 175feet on Northumberland Heath, Erith, which had beenrolled and stained a bright yellow ; this, though found onthe surface, I believe to have been a relic of a gravelpatch since-
The Archaeological journal . top of ShootersHill, this appears to have been the sea, but as it gotlower it became estuarine, leaving terraces, now onlyi*epresented by patches of gravel at different that at 400 feet on Shooters Hill down to that at100 feet on Dart ford Heath and Cray ford no implementhas been procured in situ, but I found a large imple-ment (of the broad Abbeville type) at an elevation of 175feet on Northumberland Heath, Erith, which had beenrolled and stained a bright yellow ; this, though found onthe surface, I believe to have been a relic of a gravelpatch since- removed. But in the Dartford heath layer Ifound a hache in situ, which was figured by Mr. in his Ancient Stone Implements of Great Britain,and which he has kindly allowed me to reproduce here,while another was found by Mr. C. C. Fooks in the samegravel last year. 1 Tt had been used as a tool for freeing a horsedioe from weeds, and was muchworn thereby, before I succeeded in rescuing it. ON IMPLEMENTS AND CHIPS. 299. The river then descended slowly to about its presentlevel, a hundred and fifty feet below that last mentioned,when it began to deposit very gently the lower brick-earths of the Thames valley, as they are called, beingthe debris from the lands and cliffs adjacent, amongothers the higher gravels of the old river, and it is fromthese, perhaps the nearest, that (looking at their situation,mineral condition, and wear) I believe the earliest flintflakes recorded as being found at Crayford were derived;viz., those by the Rev. 0. Fisher, Mr. Cheadle (oneconsiderably worn ), and Dr. Gladstone, , while Ihave found one or tAvo which I feel sure have a likehistory. The water meanwhile got higher and higher, reachingthe 100 feet level again. During this last rise anddeposit of mud these chips were covered up. Then theriver slowdy went down, and in its latest deposit, themarsh clay and forest bed, may be found the latest imple-ments of the stone-using times. These
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