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Acheul, the main river and its tributaries were annually frozen over for several months in winter. In that case, the primitive people may, as Mr. Prestwich hints, have resembled in their mode of life those American Indians who now inhabit the country between Hudson's Bay and the Polar Sea. The habits of those Indians have been well described by Hearne, who spent some years among them.

Evans communicated to the Society of Antiquaries a memoir on the character and geological position of the 'Flint Implements in the Drift, which appeared in the Archaeologia for 1860. The results arrived at by Mr. Prestwich were expressed as follows: "First. That the flint implements are the result of design and the work of man. "Second.

Falconer, made two grants towards defraying the expenses, and Miss Burdett-Coutts contributed liberally towards the same object. A committee of geologists was charged with the investigations, among whom Dr. Falconer and Mr. Prestwich took a prominent part, visiting Torquay while the excavations were in progress. Mr.

Prestwich had previously described a freshwater deposit, resting on the London Clay, and consisting chiefly of gravel, in which an elephant's tooth and the bones of a bear were embedded. The flint implement was deeply discoloured and of a peculiar bright light-brown colour, similar to that of the old fluviatile gravel in the cliff. Another flint implement was found in 1860 by Mr.

Such old alluvial deposits now capping the cliffs of Kent seem to have been the river-beds of tributaries of the Thames before the sea encroached to its present position and widened its estuary. On following up one of these freshwater deposits westward of the Reculvers, Mr. Prestwich found in it, at Chislet, near Grove Ferry, the Cyrena fluminalis among other shells.

Sir Charles Lyell, in his opening address at a session of the British Association, did not hesitate to support the conclusions of Prestwich. It was now the turn of Frenchmen of science to arrive at Abbeville. MM. Gaudry and Pouchet themselves extracted hatchets from the Quaternary deposits of the Somme.

It is now thirty-four years since he carefully described and figured the coin-shaped bodies, or larger sacs, as I have called them, in a note appended to the famous paper "On the Coal-brookdale Coal-Field," published at that time, by the present President of the Geological Society, Mr. Prestwich.

Seams of laminated marl often bent round upon themselves. d. Another sign of ice agency, of which Mr. Prestwich has given a good illustration in one of his published sections, and which I myself observed in several pits at St. Acheul, deserves notice.

No less than 33 shells of this group are said to be identical with shells of the London clay proper, yet, after visiting Cuisse-Lamotte and other localities of the "Sables inferieurs" of Archiac, I agree with Mr. Prestwich, that the latter are probably newer than the London clay, and perhaps older than the Bracklesham beds of England.

The age of each must be determined inferentially by comparing the age of strata in which these animals are usually found with the age in which the most ancient traces of man are discovered, such as the deposits already described in the North of France. Similar discoveries on a smaller scale are recorded by Mr. Prestwich in Suffolk, England, and in Devonshire.