PREFACE. ix 



To Professor Hutton of Canterbury College, New 

 Zealand University, I am indebted for the generous loan 

 of his collection of New Zealand Bryozoa, belonging to 

 the Christchurch Philosophical Society. From an exam- 

 ination of them, I should gather that some one, not a 

 student, had the manual work of affixing the labels, 

 because, in some instances, mistakes have arisen which 

 must not be credited to Professor Hutton. I mention 

 this because the synonyms could not be overlooked, and 

 must occasion some surprise. 



To Dr. Edward Pergens of Belgium I owe all the 

 valuable information concerning the species of Lamarck, 

 the whole of whose collection has been examined by 

 Dr. Pergens, who generously sent me many valuable notes 

 upon it. 



Of whatever use this Catalogue, with all its faults, may 

 prove to the student in the future, it is to Mr. Waters that 

 the debt of gratitude is due, and I desire to record my 

 own deep indebtedness to him from the commencement. 

 He it was who first suggested my printing it, and who 

 encouraged me in the prosecution of the work through 

 all its manifold difficulties, lending me books, giving me 

 advice, and yet leaving me free to adopt my own opinion. 

 Had it not been for the kindly encouragement of Mr. 

 Waters, my spirit would have failed me many times. 



One more friend yet remains to receive my sincere 

 thanks, and as Mr. Waters may be called the Alpha, so 

 Mr. Peal of Ealing may be called the Omega, of my work. 

 \Vithout the former it would never have been attempted, 

 without the latter it would never have been completed. 

 To Mr. Peal I owe everything connected with the publi- 

 cation ; he undertook the seeing it through all its financial 

 difficulties, and has proved himself a very real friend in 

 bringing my work to a practical result. 



