Abstract
In a former communication (March 1856) I described a few obscure traces of animals from these old rocks in the Longmynd, and have now to add some further information, gathered during the last summer in the same locality. The markings which were in that paper referred to the burrows of Annelides have been found in the greatest profusion, and through a much greater thickness of strata than before, not less than a mile in vertical measure; and they have been detected too in places considerably to the south and west of the localities before given. I am glad of the opportunity of again drawing attention to the subject, partly because the woodent-section in the former paper, at page 247, Journ. No. 47, was accidentally made so as to exclude the most important beds, and partly because these annelide-markings have, during the present year, been sedulously searched for, and similar ones found, by my friend. Dr. J. R. Kinahan, of Dublin, in the undoubted Cambrian beds of Bray Head, Wicklow. His paper appeared in the January Number for 1857 of the Proceedings of the Dublin Geological Society. The Section here given has numbers corresponding to the beds enumerated in the former paper; and the overlying Silurian strata (10, 11, 12) are introduced to show their relations to the highly inclined Cambrian beds under notice.

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