ON CRETACEOUS POLYZOA. 



337 



I have now reviewed and reported upon the whole of the British Fossil 

 Polyzoa known to me. From certain indications that have come to my 

 knowledge, the reports have been helpful in many ways to specialists : 

 for this I feel grateful. For my many imperfections or defects I must 

 apologise, but at the same time my thanks are given to Professor T. 

 Rupert Jones, F.R.S., and to Dr. Henry Woodward, F.R.S., of the 

 British Museum, for many kindly suggestions and eflBcient aid during the 

 progress of my work. My thanks are due also to those friends who 

 have willingly acted with me as the Committee. To the General Com- 

 mittee of the British Association my thanks are especially due for help 

 rendered and encouragement given from time to time whilst I have been 

 engaged in the compilation ot the seven reports — including the present 

 one — on Fossil Polyzoa, which are now completed. 



' Gr. Gravesend. - S. Salisbury. 



1892. 



