11 THE VOYAGE OF H.M.S. CHALLENGER. 



no doubt in common with many others, under a deep obligation. My earnest thanks are 

 also due to my personal friends, Mr. Spence Bate, the Rev. Canon Norman, and Dr. 

 Murray, the Editor of the Challenger Eeports, for the uncommon generosity with which 

 they have allowed me to borrow from their libraries, and retain, not for weeks only, but 

 in some instances for years together, rare and costly books and pamphlets. For the loan 

 of valuable l^ooks or papers I am indebted likewise to Professor Alphonse Mihie-Edwards, 

 to Mr. W. E. Hoyle, of the Challenger Office, to Mr. Edward Saunders, of Lloyds, and to 

 one or two other friends. Nor must I forget the friendly and unsparing zeal with which 

 both Mr. Hoyle and Mr. James Chumley, of the Challenger Office, have assisted me in my 

 book-borrowing career. 



For favouring me with one or several or all of their contributions to the literature 

 of the Amphipoda I have to thank a large number of gentlemen : in Great Britain, 

 C. Spence Bate, G. Herbert Fowler, E. J. Miers, A. M. Norman, David Eobertson, W. 

 Baldwin Spencer, and A. 0. Walker ; on the Continent of Europe, Carl W. S. AurivilUus, 

 Th. Barrois, Jules Bonnier, Carl Bovallius, Edouard Chevreux, A. Delia Valle, Adrien 

 DoUfus, Henri Gadeau de Kerville, Jules de Guerne, H. J. Hansen, R. Koehler, W. 

 Lilljeborg, G. Pfeffer, G. 0. Sars, J. Sparre Schneider, and August Wrzesniowski ; in the 

 United States of America, Walter Faxon and S. 1. Smith ; in Australia, W. A. Haswell ; 

 in New Zealand, Charles Chilton, T. W. Kirke, and G. M. Thomson. To the kindness of 

 Professor S. I. Smith and Mr. E. J. Miers I am under a special obligation, since, when 

 the first sets which they had sent me of their valuable paj)ers had been destroyed by an 

 accident, they generously and to my great convenience repeated their gifts. 



In obtaining the biographical dates, given where possible in connection with the 

 notice of each author's earliest work on the Amphipoda, I have received much kind 

 assistance from Professor G. 0. Sars, Professor S. I. Smith, and Mr. W. E. Hoyle. 



For various specimens of Amphipoda I wish cordially to thank Dr. Bruce, of the 

 Military Hospital, Malta, Mr. Charles Chilton, of Dunedin, New Zealand, Mr. W. A. 

 Haswell, of the University of Sydney, Australia, Canon Norman, of Burnmoor Rectory, 

 Fence Houses, Mr. David Robertson, of Cumbrae, Scotland, Herr Conservator J. Sparre 

 Schneider, of Tromsd, Norway, Professor S. I. Smith, of New Haven, Connecticut, U.S.A., 

 Mr. G. M. Thomson, Rector of the High School, Dunedin, New Zealand, and Mr. A. 0. 

 Walker, of Chester. For purposes of comparison with the Challenger collection, as well 

 as for throwing light upon frequent doubts which the literature of the subject suggested, 

 many of these specimens were of great importance. Some proved in actual fact extremely 

 useful, and almost all might have been of the highest service had not the pressure 

 imposed by the limits of time forced me too much to neglect them. 



