GRAVEL AROUND WALDERSLADE. 215
I have received much help from my friend Kennard, who has
kindly lent to me his extensive collection of pamphlets dealing
with this subject, and I take this opportunity to express my
thanks to him.
BIBLIOGRAPHY.
1. Sir Joseph Prestwich, "On the Occurrence of Palaeolithic Flint Implements
in the neighbourhood of Ightham."
Quart. Journ. Geol. Soc. xlv.(1889).
2. Sir Joseph Prestwich, "On the Drift Stages of the Valley of the Darent'"
Quart. Journ. Geol. Soc. xlvii (1891).
3. Sir Joseph Prestwich, "Primitive Characters of Flint Implements from
the Chalk Plateau."
Journ. Anthrop. Institute, xxi (1894)
4. W. J. Lewis-Abbott, "Plateau Man in Kent."
Natural Science, iv. (1894).
5. T. Rupert Jones, "On the Geology of the Plateau Implements."
Natural Science, v. (1894).
6. A. M. Bell, "Remarks on Flint Implements from the Chalk Plateau."
Journ. Anthrop. Institute xxiii. (1894)
7. Sir Joseph Prestwich, Controverted Questions of Geology : London (1895).
8. W. Cunnington, "Authenticity of Plateau Man."
Natural Science, xi. (1897).
9. A. S- Kennard, "Authenticity of Plateau Man."
Natural Science, xii. (1898).
10. R. Ashington Bullen, "Authenticity of Plateau Implements."
Natural Science, xii. (1898).
11. W. J. Lewis-Abbott, "Authenticity of Plateau Implements."
Natural Science, xii. (1898).
12. W. Cunnington, "Palaeolithic Implements from the Plateau Gravel."
Quart. Jour. Geol. Soc. (1898).
13. A. M. Bell, "The Tale of the Flint."
Longman's Magazine (1898).
14. Benjamin Harrison, "Eolithic Implements."
Trans. S.E. Union Scientific Societies (1899).
15. G. Leith, "On Caves, Shell-mounds and Stone Implements of South
Africa."
Journ. Anthrop. Institute, xxviii. (1899).
16. R. Ashington Bullen, "Eolithic Implements."
Trans. Victoria Institute (1900).
"Mesvinian" of Rutot, who however considers that the latter stage only is represented.
Nevertheless owing to the fact that the implements from the Plateau Gravel are not all of the
same age but range over a long period of time, quite as primitive forms as the Reutelian are
met side by side with the better finished types (Mesvinian) such as are figured in this
paper.
Rutot is certainly under a misapprehension when he thinks he finds contemporaneous
Reutelian implements at the base of the brickearth (low-level valley drift.) at Erith, although
he offers a very ingenious explanation. He however overlooks the occurrence in the
immediate neighbourhood of an indisputably older deposit (the high-level valley drift) which
contains Palaeolithic Implements and which of course is itself newer than the Plateau
Gravel.