l6'Jsi-1902. No. ;«. UPPER DEVONIAN FISH REMAINS. 



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

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

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

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

 a study in fragments, and has demanded a disproportionate amount 

 of time and labour. Moreover the paleontoiogical 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 

 resultN than has actually been the case. 



In conclusion, I desire to take this oppoi'tunity 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 Munchen, 

 Professor C. R. Eastman, who has so readily replied to my enquiries 

 concerning a number of doubtful American forms. 



