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LONDON
Geologists' Association, January 5.-The Rev. J. Wiltshire, president, in the chair. "On the overlapping of several Geological formations on the North Wales border,“by Mr. D. C. Davies, of Oswestry. The author stated that the Geological formations of the district ranged upwards from the Llan-deilo to the New Red Sandstone. Attention was directed to the way in which nearly every one of“these overlapped the one below, hiding in its course many of the beds, amounting in some cases to?,??? feet of strata, which at other points were exposed. The overlaps increase as a rule from north to south, except in that of the Bala and Caradoc beds by the Llandovery, which increase in an opposite direction. The author inferred that the conformability of strata at a given point did not necessarily prove the unbroken sequence or complete series of the H?eds at that point, and also that conformability between either two consecutive beds of the same formation, or between those of two distinct formations, was not to be expected to extend over a large area. Amongst other facts stated in this paper was the important one that coal seams occur in Permian strata in the neighbourhood of Ifton. The President remarked upon the enormous time required for the production of the phenomena described by Mr. Davies. Prof. Morris explained the geological and physical features of the district, and spoke of the high value of the paper.-"Report of the Proceedings of the Geological Section of the British Association at Edinburgh, 1871,“by Mr. John Hopkinson, one of the deputation from the Geologists' Association. In this communication the author succinctly stated the more important features of the opening eddress by the president, Prof. Geikie, and of the many papers read before Section C at the meeting at Edinburgh last year, and gave interesting accounts of the two geological excursions under the direction of Prof. Geikie.-Mr. J. T. B. Ives communicated the interesting fact of an extensive bed of peat occurring under gravel between Finchley and Whetstone.-Fossils from the glacial deposits of Islington cemetery were exhibited by Mr. Caleb Evans.
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Societies and Academies . Nature 5, 234–236 (1872). https://doi.org/10.1038/005234b0
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DOI: https://doi.org/10.1038/005234b0