12 REPORT OF NATIONAL, MUSEUM, 1925 



Advancement of Science on " The antiquity of man in America in 

 the light of recent studies"; the American Statistical Association, 

 in Chicago, on "Effects of Immigration on the American Type," 

 and the American Congress on Internal Medicine, on " Oppor- 

 tunities for medical and pathological studies in the collections of the 

 TJ. S. N'ational Museum." Dr. Eesser, Dr. Bassler, and Dr. Bartsch 

 lectured to University classes, and the latter, in numerous lectures 

 before clubs and organizations forcefully advocated bird and wild 

 flower conservation. He also repeated, on request, his lectures on 

 " Wonders of the Deep " and " Birds and man — a comparative 

 study in animal behaviour," and delivered a lecture on "MoUusks 

 of importance in medicine " before a class at the N"aval Medical 

 School. Austin H. Clark, Curator of Echinoderms, on the after- 

 noon of December 30, 1924, at the general session of the American 

 Association for the Advancem.ent of Science, gave an illustrated 

 address on "The Navy's oceanographic program." He also de- 

 livered an illustrated lecture on " Man's relation with the animal 

 world " at the McDonough School. 



Through the Secretary of the Navy, the Smithsonian Institution 

 was invited to participate in a conference of representatives of 

 the executive departments and scientific establishments of the Gov- 

 ernment of the United States on July 1, 1924, for the purpose of 

 formulating plans for a naval expedition to undertake investigations 

 in oceanography. Austin H. Clark, Dr. Paul Bartsch, and Dr. 

 Waldo L. Schmitt of the Museum staff were designated as rep- 

 resentatives of the Institution on this occasion. A series of addresses 

 and discussions by the representatives of the several departments 

 was characterized by a spirit of cooperation and a keen apprecia- 

 tion of the value of the work proposed. In this latter connection, 

 Mr. Clark in reporting on the meeting states " Doctor Schmitt, by 

 a long and carefully prepared address, earnestly and forcefully 

 delivered, and illustrated by specimens which he brought with him, 

 more than any one else impresed the conference with the economic 

 importance of oceanographic work." At the close of the meeting 

 an executive interim committee, on which Mr. Clark was chosen 

 as representative of the Smithsonian Institution and its branches, 

 was selected to prepare a report for the consideration of the con- 

 ference. 



During the year the division of graphic arts and the section of 

 photography arranged 14 special exhibitions, four of which com-^ 

 prised pictorial photographs, and 10 exhibitions of etchings, or 

 other reproductive processes. In connection with an exhibit of 

 etchings by John Taylor Arms, the artist personally demonstrated 

 in the exhibition hall the making of an etching before a large and 

 interested audience. 



