REPORT 



OF 



S. p. LANGLEY, 



SECRETARY OF THE SMITHSONIAN INSTITUTION, 



FOR THE 



YEAR ENDING JUNE 30, 1904. 



To the Hoard of Rcijentx. of the Sju Ithsoniait Inst It iit ion. 



Gentlemen: I have the honor to present h(M-ewitli my report, show- 

 ing the operations of the Institution during the year ending June o<>, 

 1904, including tiie vvoi'k j)laced under its direetion l)y Ck)ngress in the 

 United States National Museum, the Bureau of American Ethnology, 

 the International P^xchanges, the National Zoological Park, and the 

 Astroph3^sical Observatory. 



Following the precedent of several years, there is given, in the body 

 of this report, a general account of the aH'airs of the Institution and 

 its bureaus, while the Appendix presents more detailed statements by 

 the pei'sons in direct charge of the dili'erent l)ranciies of the work. 

 Inde})endently of this, the operations of the National Museum are 

 fully treated in a separate volume of the Smithsonian Kepoi't, and the 

 Report of the Bureau of American Ethnology constitutes a Nolume 

 prepared under the supervision of the Chief of that l)ureau. The 

 scientific work of tlu^ Astrophysieal Observatory is i-ecorded in occa- 

 sional publications. 



THE SMITHSONIAN INSTTTUTION. 



THE ESTABLISmiENT. 



By act of Congress approved August 10, 1S4(;. tlu> Smithsonian 

 Institution was created an F]stablishment. Its statutory UKMubers arc 

 the President, the Vice-President, the Chief Justice of the United 

 States, and the heads of the Executi\e Departments. The preroga- 

 tive of the Establishment is " the superxision of the atfairs of the 

 Institution and the advice and the instruction of the Board of Regents." 

 SM 1904 1 1 



