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II.—The Origin of Septarian Structure

Published online by Cambridge University Press:  01 May 2009

Abstract

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Type
Original Articles
Copyright
Copyright © Cambridge University Press 1913

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References

page 100 note 1 This was pointed out by Beche, De la (loc. cit., p. 597Google Scholar). Fossils which are found in a crushed state in the shale are uncrushed in the concretions. This is the case, for instance, with the Christian Malford ammonites, as Pratt long ago noticed.