REPORT OF ASSISTANT SECRETARY. 59 



Louisiana Purchase Exposition, and has continued, as in previous 

 years, to conduct the examinations in photography for the U. S. 

 Civil Service Commission. 



COOPERATION OF THE EXECUTIVE DEPARTMENTS. 



The Museum has, as usual, received important assistance from 

 several of the Departments and bureaus of the Government. Its 

 relations to the Tinted States Geological Survey, the Bureau of 

 Fisheries, the Biological Survey and Divisions of Entomology and 

 Botany of the Department of Agriculture, and the Bureau of Ameri- 

 can Ethnology, especially in regard to the transfer ol collections, 

 have been referred to elsewhere. 



Officers of the Army and Navy stationed in the new possessions 

 have made several valuable contributions, and the Army Medical 

 Museum has continued its cooperation in promoting the welfare of 

 the division of physical anthropology. 



Special acknowledgments are due to the Quartermaster's Depart- 

 ment of the Army for many courtesies in connection with the trans- 

 portation of specimens and outfits to and from distant points, and 

 to the Treasury Department for the prompt admission and ship- 

 ment to Washington of specimens received from abroad at several 

 of the customs-houses. 



EXPOSITIONS. 



Louisiana Purchase Exposition. — The exhibits of the National 

 Museum for this exposition were prepared under the general direc- 

 tion of Dr. F. W. True, who represented the Smithsonian Institution 

 and the Museum on the Government Board. Dr. Marcus W. Lyon, 

 jr., was appointed to assist him in the capacity of chief special agent. 

 The exhibits were classified under anthropology, biology, and geol- 

 ogy, and were assembled under the supervision of the head curators, 

 Prof. 0. T. Mason, Doctor True, and Dr. George P. Merrill, respec- 

 tively. A brief description of them was given in the Smithsonian 

 Report for 1904. The exposition closed on December 2, 1904, and 

 the exhibits were returned to Washington early in 1905, with the 

 exception of those which it -was decided to send to the Lewis and 

 Clark Exposition. 



Lewis and Clark Exposition. — The bill providing for the celebra- 

 tion of the one hundredth anniversary of the exploration of the 

 Oregon country by Capts. Meriwether Lewis and William Clark 

 was approved on April 13, 1904, and the sum of $200,000 was appro- 

 priated for the expenses of a Government exhibit. The exposition 

 opened June 1, 1905, to run for a period of five and one-half months, 

 or until October 15, 1905. Doctor True and Doctor Lyon acted in 

 the same capacities as for the preceding exposition. The sum of 

 NAT MUS 1905 5 



