^cparimcnf of fhc ^nUviovt 



U. S. NATIONAL MUSEUM. 



rD(p.n 



26 



5/ 



r', 



BULLETIN 



OF THE 



UNITED STATES NATIONAL MUSEUM, 



ISTo. 2 3. 



PUBLISHED UNDER THE DIRECTION OF THE SMITHSONUN INSTITUTION. 



Washington-, 

 aovebnment^rinting office. 



1881. 



