644 MR. H. BOLTox, F.R.S.E., ON [June, 1904. 



The writer hopes in a subsequent paper to consider the 

 question more fully, and to' also complete this Palseontologi- 

 cal survey of the Lancashire Coal Measures. In conclusion, 

 we would gladly record the help and courtesy received 

 during the preparation of this paper from the Honorary 

 Secretary of the Society, Mr. William Saint, both in the 

 supply of volumes of the transactions and in other ways. 

 Finally, a word must be said of the splendid services 

 rendered to Geological Science by the late Mr. Greorge Wild, 

 who brought together the largest and best located collection 

 of coal fossils ever collected. 



Without the opportunity of working over that collection, 

 this paper could not have been written, and the writer would 

 also add his testimony to the singular unselfishness and 

 kindly character Mr. Wild always displayed in rendering 

 help or supplying information. 



