﻿A MONOGRAPH 



or 



BRITISH 



DEVONIAN BRACHIOPODA. 



Br 



THOMAS DAVIDSON, F.R.S., F.O.S., 



ETC. 



PART VI. 

 SECOND PORTION. 



LONDON: 



PRINTED FOR THE PALjEONTOGRAPHICAL SOCIETY. 



1865. 



