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PKOCEEDIXGS OF THE GEOLOGICAL SOCIETY. 



[May 9, 



There is no doubt that the whittling is as old as the bone ; for, be- 

 sides the fact of the cut surfaces having the same features as those 

 which are natural, and their very existence being unknown until the 

 fossil came into my hands, there is the satisfactory circumstance of 

 a few of them being covered with a stalagmitic deposit ; moreover 

 these facets are slightly concave, as if shrunk from the animal matter 

 having been subsequently removed. 



It occurred twelve feet deep, in the freshwater stratum of Barn- 

 well, associated with remains of Elephant, Ehinoceros, and Hippo- 

 potamus. 



There is another class of facts in connexion with this gravel 

 worth remark ; and that is, the " pipes " and what I shall name 

 *' walls." The pipes vary much in size and length ; the particles 

 of gravel generally dip towards them, though in one instance the 

 edges of these beds on each side were directed upward — which I can 

 account for by a gaping of the gravel, and material falling into the 

 hole while it was closing, or by the forcible uprooting of a tree. 

 The ivalls extend from the top to the bottom of the pits ; they are 

 more uniform in width than the pipes, and are usually hard, so that 

 when the gravel is dug away they stand out like walls. At Ches- 

 terton, one about eight inches thick had the gravel dug away on each 

 side for from twenty to thirty feet. Its sides were hard like mortar. 

 The direction was north and south. One at Barnwell, originally only 

 a foot wide, after a few feet had been cut away terminated in the fault 

 shown in fig. 2. ; and when a few feet more were cut down all trace 

 of disturbance was lost. 



Fig. 2. — Section in the Barmuell Gravel-pit, showing a downward 

 slip of 6 inches. 



a. Marl bed. b. Fine gravel. c. Marl bed. d. Fine gravel. 



The width of the faulted piece at the upper marl band is 7 feet. 



These seem to me to be the typical facts of the Cambridgeshire 

 gravels ; and it is only to be added that Prof. Hailstone and Mr. 

 Warburton, in an early volume of the Geological Society's Transac- 

 tions, described the coarse gravel capping the Gogmagog and Harston 

 hiUs. From the Gogs, Prof. Sedgwick and I have collected exam- 



