BEITISH 



FOSSIL BRACHIOPODA 



BY 



THOMAS DAVIDSON, F.KS., G.S., 



MEMBEE KTRANGER DE l'INSTITUT DES PEOVINCES ; OF THE GEOLOGICAL SOCIETY OF FRA:XCE ; LINNEAN SOCIETY OF 



NORMANDY ; IMPERIAL MINEEALOGICAL SOCIETY OP ST. PETEESBURGH ; ROYAL SOCIETY OF LIEGE ; 



ZOOLOGICAL SOCIETY OF VIENNA ; GEOLOGICAL SOCIETY OF GLASGOW ; ACADEMY 



OF SCIENCES OP ST. LOUIS, AMERICA; PAL.IJONTOLOGICAL SOCIETY 



OF BELGIUM, ETC. 



YOL. II. 



PERMIAN AND CARBONIFEROUS SPECIES. 



LONDON : 



PRINTED FOR THE PALiEONTOGRAPHICAL SOCIETY. 



1858—1863. 



