ADVERTISEMENT 



The following memoir, by Doctors (i. l>rowii rToodo niul T;n-loton IT. Bean, 

 having been published at tlic joint expense of" tlie Sniitlisonian fund and of the 

 printing ;i,ppropriation of the United States National ^fuseuni, two scparati- 

 editions an^ issueil, one forming a portion of tlie scries of Smithsonian Contri- 

 l)utions to Knowledge, and IIk; other apj)earing as a special bulletin of the 

 United States National Museum. 



Tn accordance with the rule adopted In' tlie Smithsonian Institution, the 

 work has been submitted for examination to a. commission consisting of Doctors 

 Theodc>re Gill, David S. Jordan, and Edward D. Cope, and having been recom- 

 mended for publication 1)\' these gentlemen, it is herewith presented as a work 

 of original research, illustrating more particularly the deep-sea and jielagic 



fishes of the world. 



S. P. Langley, 



Secirfarf/. 

 Smithsonian Institution, 



Wasliinijtuii, Jiil/i, JS95. 



