Report of the British Association for the Advancement of Science
... td b c. m u back and the anal p late the y are all brought close together ... Silurio- Cambrian. , ma y be g iven as exam ples. , and must have been ...
Ofthe Chicago Academy of Sciences - Forgotten BooksAlteration of dike rooko e.t Mt. Egerton and Gordon, bas produced extremely white clay which is used as ~a.per-filler and for po~oei~n and. rn - itch - AWSstones of Silurio-Devonian age. Classified by geologic age or member ... PARET T. D. 1887. Annual report of the Geo- logic~l Survey of Pennsylvania ... With Special Articles - National Speleological SocietyA full survey is given of all known Crinoidea from the Lower. Palaeozoic rooks in Britain (including Ireland), hut consideration of.
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