1898-1902. No. 33.] UPPER DEVONIAN FISH REMAINS. 



The preparation of this material, which was not of great extent, 

 occasioned great difficulties. Many of the specimens, it is true, were 

 well preserved with respect to structure and sculpture, but the great 

 majority were sadly fragmentary. My work has really been, so to speak, 

 a study in fragments, and has demanded a disproportionate amount 

 of time and labour. Moreover the paleontological museum at Kristiania 

 does not possess much material for comparison when studing these 

 forms. With a well stocked museum at my disposal, I should most 

 probably have been able in some instances to arrive at more certain 

 results than has actually been the case. 



In conclusion, I desire to take this opportunity of thanking the 

 editors of the scientific publications of the Second Fram Expedition for 

 the liberal manner in which they have provided for the illustrations to 

 my work. I also wish to thank my old fellow student at Miinchen, 

 Professor G. R. EASTMAN, who has so readily replied to my enquiries 

 concerning a number of doubtful American forms. 



