﻿AUTHOR'S NOTE. 



In the year 1871 I completed my work on British Fossil Brachiopoda; and I now 

 propose, in a series of Supplements, to revise the old work, correct some of its mistakes, 

 and add descriptions and figures of those species which have been discovered since 

 the publication of the Monographs to which they respectively belong. This will add 

 a fourth volume to the work, and end my labours in connection with the British 

 Brachiopoda. 



I avail myself of the present opportunity to tender my grateful thanks to the 

 Council of the Royal Society for having awarded to me (in 1870) one of their Royal 

 Medals in consideration of the work I had completed. The honour and reward were, it is 

 true, far beyond my deserts, but have operated as an incentive to renewed exertions on 

 my part. 



T. D. 



