PUBLICATIONS OF THE UNITED STATES 

 NATIONAL MUSEUM 



The scholarly and scientific pubhcations of the United States 

 National Museum include two series, Proceedings of the United States 

 National Museum and United States National Museum Bulletin. 



In these series the Museum publishes original articles and mono- 

 graphs dealing with the collections and work of its constituent 

 Museums- — the Museum of Natural History and the Museum of 

 History and Technology- — setting forth newly acquired facts in the 

 fields of Anthropology, Biology, History, Geology, and Technology. 

 Copies of each publication are distributed to libraries, to cultural and 

 technical organizations, and to specialists and others interested in the 

 different subjects. 



The Proceedings, begun in 1878, are intended for the publication, in 

 separate form, of shorter papers from the Museum of Natural History. 

 These are gathered in volumes, octavo in size, with the publication 

 date of each paper recorded in the table of contents of the volume. 



In the Bulletin series, the first of which was issued in 1875, appear 

 longer, separate publications consisting of monographs (occasionally 

 in several parts) and volumes in which are collected w^orks on related 

 subjects. Bulletins are either octavo or quarto in size, depending on 

 the needs of the presentation. Since 1902 papers relating to the 

 botanical collections of the Museum of Natural History have been 

 published in the Bulletin series under the subseries Contributions 

 from the United States National Herbarium. Since 1959, in Bulletins 

 titled "Contributions from the Museum of History and Technology," 

 have been gathered shorter papers relating to the collections and research 

 of that Museum. 



This work forms number 202, volume 3 of the Bulletin series. 



Frank A. Taylor 

 Director, United States National Museum 



U.S. GOVERNMENT PRINTING OFFICE 

 WASHINGTON : 1966 



For sale by the Superintendent of Documents, U.S. Government Printing OflSce 

 Washington, D.C., 20402 - Price ?2.25 (paper) 



