Proceedings of the united states national museum  

 - Goverment Printing Office  washington   1920 
 - xiii, 660p. : 97 ill ; 24 cm 
 -  vol  55 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Proceedings of the united states national museum <br/>2a C4<br/>science
<br/><br/><label>Universal Decimal Class. No.: </label>2a  / C4