16 ANNUAL REPOET SMITHSONIAN INSTITUTION, 1919. 



youth, and mature men and women. It would stimulate the historian, artist, 

 designer, manufacturer, and artisan, and bring to the American people in 

 the most realistic manner the extent and character of their historical and in- 

 dustrial development, and place side by side with the American many of the 

 developments in art and science of other lands. I can not conceive of a more 

 powerful influence for good that could take the form of a memorial to 

 Koosevelt. 



We have the great monument to AVashington, the great mausoleum to Lincoln, 

 and if on the same great parkway between the Capitol and the Potomac this 

 tribute to Roosevelt could be erected it would be a tribute worthy of what he 

 himself stood for in the life and thought of our country. 



The bill providing for this memorial to Theodore Eoosevelt was 

 not brought up before the Congress for action during the session 

 at which it was introduced, but it was reintroduced on May 21, 1919, 

 during the first session of the Sixty-sixth Congress, and at the close 

 of the fiscal year was still in committee. 



KESEARCH CORPORATION. 



The Research Corporation, mentioned in several previous reports, 

 is the outgrowth of the gift to the Smithsonian Institution by Dr. 

 F. G. Cottrell of his patents covering the electrical precipitation of 

 suspended particles. 



The process is now in successful operation in a number of smelting 

 and refining plants in which the precipitation of fumes is an impor- 

 tant item. From the income of these applications there was estab- 

 lished a fellowship, amounting to $2,500 each year, for research 

 along technical lines. 



POPULAR SCIENTIFIC LECTURES. 



In furthering one of the purposes of the Institution, "the diffu- 

 sion of knowledge," a series of popular scientific lectures, illustrated 

 by lantern slides, was instituted during the year, and given in the 

 auditorium of the National History Building of the Museum. These 

 lectures were open to the public and were all well attended, showing 

 the interest of the people of Washington in scientific matters. Eight 

 lectures were given in the series, on alternate Saturday afternoons, 

 as follows: 



1. Photographing in the Canadian Rockies, by Charles D. Walcott. 



2. Sun Rays in Many Lands, by C. G. Abbot. 



3. The Indian as a Stone Mason, by J. Walter Fewkes. 



4. Meteorites and Shooting Stars, by George P. Merrill. 



5. The Story of Our Local Aboriginies, Historic and Prehistoric, With Demon- 

 strations of Their Instrument Making, by William H. Holmes. 



0. Harmful and Beneficial Insects, and How the National Museum Helps in 

 Their Study, by L. O. Howard. 



7. The Story of Silk, by Frederick L. Lewton. 



8. Why the Wild Flowers Are So Wild, by Frederick V. Coville. 



It is intended to continue these lectures during the coming year. 



