Ill 



R. Kirkpatrick (British Museum) and Dr. S. Harmer (earlier Caml)ridge, now Keeper 

 ol" British Museum) have with great liberality and unfailing willingness lent me 

 material from the collections in their charge, and a similar interest has been 

 shown in my work by Canon A. M. Norman, Mr. A. W. Waters and the late Mr. 

 C. N. Peal, to whose private collections I have very often had recourse. Mr. O. 

 Nordgaard (Trondhjem) has always willingly sent me material of the Norwegian 

 Bryozoa and my thanks are also due to Mr. F. Canu, Versailles, Mr. J. Gabriel, 

 Abbotsford, Victoria, Prof. Dr. H. Theel, Stockholm, Mr. J. F. Whiteaves, Ottawa, 

 Canada and Mrs. H. Eden (nee Gatty) for assistance with material or loan of spec- 

 imens. 



Lastly, I would express my warmest thanks to the Directors of the Carlsberg 

 Fund, who have voted me the means not only for the continuation of my many 

 years' studies but also for the publication of this work. 



