534 Dr. J. E. Marr — Palceolithic Imi:)lement 



1905. " Ou the Pre-Roman Roads of Northern and Eastern Yorkshire" : Journ. 



Arch. Inst. 

 "Note on the Discovery of the South-Eastern Coal-field" : Trans. Manch. 

 Geol. Soc, vol. xxix, pp. 134-7. 



1906. " Early Man in Somerset " : Victoria County History. 



1907. "The Discovery of the South-Eastern Coal-field": Journ. Soc. Arts, 



vol. Iv, pp. 450-8, figs. 



II. — On a PALiEOLITHIC IMPLEMENT FOUND I'N SITU IX THE 



Cambeidgeshire Gkatels. 



By J. E. Makr, Sc.D., F.R.S. 



(PLATE XXXI.) 



DURING the Long Vacation of 1909, 1 was fortunate enough, when 

 examining some gravel-pits in the company of Messrs. Rastall, 

 Romanes, and Gandy, of Christ's College, to discover a Palaeolithic 

 implement, in situ, near Hildersham, Cambridgeshire. 



As the recorded examples of implements of this age in the county 

 are extremely few, and as the specimen which I discovered was 

 extracted from a deposit the relationship of which to the other 

 Pleistocene gravels is uncertain, a deposit, moreover, which is at 

 a considerable height above the river in its vicinity, I am induced 

 to record briefly the conditions of occurrence of the implement. 



Notices of previous discoveries, with references to the original 

 records, will be found in Mr. P. R. C. Reed's Satidboolc to the 

 Geology of Cambridgeshire (1897), pp. 237-9, and in an article by 

 Dr. Duckworth in the Sandhoolc to the Natural History of Cambridge- 

 shire (1904), p. 248. One of these discoveries (made by Mrs. Hughes 

 near Upper Hare Park) must be noticed more fully. In a paper 

 printed in the Journal of the British Archaeological Association for 

 1899, Professor Hughes writes : "I know of only one authenticated 

 case of a Palaeolithic implement found in situ. That was dug out of 

 the gravel on the top of Allington Hill by Mrs. Hughes. The height 

 of this gravel above sea-level is about 150 feet." The discovery of 

 the specimen was first recorded in Nature for 1884 (vol. xxx, p. 632), 

 and it is figured in the Archaeological Journal for 1897 (pi. iv, fig. B 9, 

 facing p. 372). 



As Messrs. Rastall and Romanes are at present engaged in the study 

 of the Cambridgeshire gravels, I do not propose to say more concerning 

 them than is sufficient for my purpose. 



In the Geological Survey Memoir of the neighbourhood of Cambridge 

 will be found an account of the distribution of the various gravels ; 

 those with which we are concerned are spoken of therein as " Marine 

 Gravels and Loam" and "Gravels of the Ancient River System" 

 respectively ; the former are frequently termed the " Plateau Gravels ", 

 which name will be subsequently used in this paper. 



On the Geological Survey Map the plateau gravels (coloured pink) 

 are represented as extending in patches from the Gog Magog Hills on 

 the north-west to Barrington Hill on the south-east, lying in the 

 intervening tract a little to the north-east of the villages of Babraham, 

 Little Abington, and Hildersham. The later gravels (coloured brown) 

 extend on either side of the course of the present stream, and at no 



