HISTORY OF BRITISH FERNS, 



EDWARD NEWMAN, 



MEMBEE OF THE IMPERIAL L. C. ACADEMY, 



FELLOW OP THE LINNEAN, ZOOLOGICAL, AND BOTANICAL SOCIETIES, 



PRESIDENT OF THE ENTOMOLOGICAL SOCIETY OF LONDON, 



&C., &C., &C. 



LONDON : 



JOHN VAN VOOEST, PATERNOSTEE EOW. 



M.DCCC.LIV. 



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