ADVEPtTIBElMENT. 



This Avork is the fourtecuth of a series of papers intended to ilhistrate 

 tlie oollections of Xatiiral History aud Ethnology belonging to the 

 riiiti'd States and constituting the Xaticnial Museum, of Avhidi the 

 Smithsonian Institution Mas placed in charge by the act of Congress of 

 August 10, 184G. 



It lias been prepan-d at the recjuest of the Institution, atid printed by 

 authority of the hohorabU' Secretary of the Interior. 



SPENCER F. BAIED, 

 Secretary Smithsoni(i)i Institudon. 

 S^iiTHSONiAN Institution, 



Washington J Ajrril 3, 1879. 



