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U ' MEMOIRS 



THE UNITED KINGDOM. 



fyuts anb Jlesmjjtioits 



ILLUSTRATIVE OF 



BRITISH ORGANIC REMAINS. 



./ 



DECADE XII. 



ILLUSTRATIONS OF THE STRUCTURE OF THE 

 CROSSOPTERYGIAN GANOIDS, 



BY THOMAS H. HUXLEY, F.R.S., 



NATURALIST TO THE GEOLOGICAL SURVEY OF GREAT BRITAIN. 



PUBLISHED BY ORDER OF THE LORDS COMMISSIONERS OF HER MAJESTY'S TREASURY. 



LONDON: 



PRINTED FOR HER MAJESTY'S STATIONERY OFFICE. 



PUBLISHED BY 



LONGMANS, GREEN, READER, AND DYER. 



1866. 

 16295. 



