An account of the origin and formation of fossil-shells, etc. Wherein is proposed a way to reconcile the two different opinions, of those who affirm them to be the exuviæ of real animals, and those who fancy them to be lusus naturæ / [Anon].

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An account of the origin and formation of fossil-shells, etc. Wherein is proposed a way to reconcile the two different opinions, of those who affirm them to be the exuviæ of real animals, and those who fancy them to be lusus naturæ / [Anon]. Public Domain Mark. Source: Wellcome Collection.