A MONOGRAPH 



BRITISH FOSSIL BRACHIOPODA, 



THOMAS DAVIDSON, LL.D., F.R.S., F.L.S., F.G.S., 



VICE-PEESIDENT OP THE PALffiONTOGEAPHICAL SOCIETY ; MEMBEE OP THE GEOLOGICAL SOCIETIES OF FEANGE, BELGIUM, 



EDINBDEGH, GLASGOW, AND OF COUNWALL ; FOEEIGN MEMBlilJ OF THE PEOVINCIAL INSTITUTE OF FEANCE ; OP THE 



LINNEAN SOCIETY OF NOEMANDY; COKRESPONDING MEllBKK OF THE IMPEEIAL ACADEMY OP SCIENCES OF ST. 



PETEESBUEG; OP THE IMPERIAL MINEKALOGICAL SOCIETY OF ST. PETEESBUEG; OF THE IMPEJilAL SOCIETY 



OP NATUEALISTS OP MOSCOW; OF THE EOYAL ACADEMIES OP BELGIUM AND BAVAEIA ; OF THE EOYAL 



SOCIETY OP HOLLAND, HAAELEM ; OF THE EOYAL SOCIETY OF LIEGE; UP THE ACADEMY OF ST. 



LOUIB; OF THE AMEEICAN PHILOSOPHICAL SOCIETY, PHILADELPHIA; OF THE INSTITUTE OF 



ALBANY, UNITED STATES; OP THE ZOOLOGICAL SOCIETY OF VIENNA; OF THE PAL.EONTO- 



GEAPHICAL SOCIETIES OF BELGIUM AND OF SWITZERLAND; OP THE MALACOLOGICAL 



SOCIETY OP BELGIUM; HON. MEMBEE OF THE GEOLOGISTS' ASSOCIATION, 



LONDON ; OF THE DUDLEY AND MIDLAND GEOLOGICAL AND SCIENTIFIC 



SOCIETY ; OF THE NATUEAL HISTOEY SOCIETY OF GLASGOW ; AND 



OP THE YOEKSHIRE PHILOSOPHICAL SOCIETY, ETC. ETC. 



VOL. IV. 



PART V. 

 INDEX, 



WITH TITLE-PAGE TO VOL. IV AND DIRECTIONS TO THE BINDER. 



Pages 369—383. 



LONDON : 

 PRINTED FOR THE PAL^ONTO GRAPHIC A L SOCIETY. 



1882. 



