viii PAPERS FROM TORTUGAS LABORATORY vol. xxxiv 



pp. 229-256), and of Gudger (Carnegie Inst. Wash. Pub. 391, 1929, pp. 149-204), 

 who have preceded me in the study of Tortugas fishes. The repetitions frequently 

 concern matters of relatively little importance. No attempt has been made to 

 correlate our several experiences in detail. W. H. L. 



The foregoing introduction by Dr. Longley may have been only a tentative 

 draft. It sets forth his intention and purpose, however, as no one else could have 

 done. It is fortunate, therefore, that he left this much. 



Acknowledgments 



The introduction was not completed; it ended with the unfinished statement, 

 "It is a pleasure to acknowledge . . ." It is, of course, entirely impossible for me 

 to make proper acknowledgments for Dr. Longley. I can only state that the per- 

 sons named in the following sentences are mentioned in the body of the book as 

 having been helpful. Dr. Waldo L. Schmitt, of the U. S. National Museum, is 

 mentioned several times as having reported interesting observations, and as 

 having furnished identifications of crustaceans. It was in the course of Dr. 

 Schmitt's work at Tortugas that most of the deep-sea fishes were collected. He 

 took a personal interest in this work which never abated. I take this opportunity 

 of expressing my gratitude to him for the help he has given me in continuing 

 the study of the specimens, and in completing the manuscript. As he had worked 

 at Tortugas, and is thoroughly familiar with local conditions, I appealed to him 

 often for information and advice, which he always willingly supplied. 



Other persons mentioned in the book as having been helpful are Dr. Paul 

 Bartsch, of the National Museum; Dr. Charles M. Breder, Jr., of the New York 

 Aquarium; and Dr. Harold W. Manter, of the University of Nebraska. All these 

 men carried on research at Tortugas, and I am sure that Dr. Longley would have 

 included proper acknowledgment of the services they rendered. He would no 

 doubt have expressed his gratitude to others of whom I have no knowledge. 



In addition to extending my personal thanks to Dr. Waldo L. Schmitt, in a 

 foregoing paragraph, I wish to thank Dr. Leonard P. Schultz and Earl D. Reid, 

 of the National Museum, who have been very helpful, and in whose laboratories 

 the Tortugas collection was studied. 



Explanations 



The manuscripts, notes, and collection fell into my hands because Dr. Longley T 

 during his illness, expressed the hope that I might see fit and be available to com- 

 plete this monograph, in the event that he should not recover. I feel honored to 

 have been chosen for this task, and although I was obliged to alter plans and to> 

 lay aside temporarily work under way, it has afforded me pleasure to carry out 

 this hope and wish of a friend and an esteemed scholar. 



Presumably because of Dr. Longley's unexpected and rather sudden with- 

 drawal from the work, or possibly because of what happened after his with- 

 drawal, the manuscript reached me in a rather disorganized state. I strongly 

 suspect that small parts of it were lost, and that in some cases his latest or final 



