REPORT OP NATIONAL MUSEUM, 1924 13 



25,000 copies were printed; Limitations of superpower and giant 

 power, of which 65,000 copies were printed; and Inspirational 

 aspects of science, issued in an edition of 5,000 copies. 



The lecture work of the Museum extends into th& mercantile field. 

 Lectures on textile fibers, cloth construction, and ornamentation were 

 given by F. L. Lewton, curator of textiles, before groups of em- 

 ployees who buy and sell textiles in two large department stores, one 

 in Washington and one in Baltimore. The employees thus trained 

 will have opportunity to assist in raising the standards in such 

 matters. 



The collections have served also art schools and manufacturers as 

 sources of original designs for decorations. Particularly is this true 

 of specimens in the division of ethnology. 



As an extension of the activities of the Museum a collection of 

 Pueblo Indian pottery, village groups, and groups showing native 

 industries were sent in the spring of 1924 to the H. J. Heinz Co. for 

 exhibition during the season at the Heinz Pier, Atlantic City, N. J., 

 where it will attract the attention of many thousands of visitors. 



The two traveling exhibits illustrating the principal processes of 

 the graphic arts, which were mentioned in the last report, were in 

 almost constant demand. They were exhibited in 13 cities in 9 

 different States during the year. These exhibits continue available 

 for exhibition upon payment of transportation charges. 



The Museum has also served in the diffusion of knowledge by 

 assisting the Smithsonian Institution in its broadcasting program 

 under Austin H. Clark, the curator of echinoderms in the Museum, 

 in whose charge the entire subject was placed by Secretary Walcott. 

 Arrangements were made in the autumn of 1923 for broadcasting 

 from Station WRC, Radio Corporation of America at Washington, 

 D. C, a talk on the Smithsonian Institution, historical in nature, 

 followed by similar supplemental talks on its various branches by 

 staff members. 



The conclusion was reached in the spring, after careful study of 

 radio programs, that tke Smithsonian and Station WRC could to 

 their mutual advantage give a series of informative talks on special 

 scientific topics, and a regular Smithsonian period was established — 

 every Wednesday at 6.15 p. m. The Carnegie Institution of Wash- 

 ington and various scientific bureaus of the Government cooperated 

 in making possible so ambitious a project. The Smithsonian was 

 by these talks brought to the notice of thousands to whom it pre- 

 viously was but a name. 



Altogether 18 items were broadcasted by the Smithsonian Insti- 

 tution during the year, 18 different individuals participating, of 

 whom 7 appeared under the auspices of or in cooperation with the 



