SCIENCE 



Friday, June 3, 1921 



The Duty of Soientifie Men in Conservation: 

 Dr. Henrt S. Graves 505 



President Harding's Presentation Address to 

 Mme. Curie 509 



Henry Piatt Gushing: Dr. John M. Clarke, 

 Dr. C. H. Smyth, Jr., ant) Dr. R. Rtjede- 



MANN 510 



Scientific Events: — 



An English Hospital for Nervous Disorders; 

 The Gift to Mme. Cwrie; Euins in the Upper 

 Canadian Valley; Geologi<:al Expedition to 

 China; Expedition to the Upper Basin of the 

 Amazon 512 



Scientific Notes and News 514 



University and Educational News 515 



Discussion and Correspondence: — 



The Aurora of May 14, 1921 : PaorEssOR 

 Frederick Slocum, Professor John E. 

 Smith. Russian Geologists: G. F. K., E. 

 T. W ; 515 



Sdentifie BooTcs: — 



McGillivray's The Coccidae: Wm. A. Eiley. 

 Bennett on the Soils and Agriculture of the 

 Southern States: Wm. B. Cobb 517 



Special Articles: 

 An Age-computing Device: Dr. C. M. 

 Kellet 518 



Meeting of Committees on Conservation: Dr. 

 Albert L. Barrows 521 



The Western Society of Naturalists: F. J. 

 Smiley 522 



MSS. intended for publioation and books, etc., intended for 

 review should be aent to The Editor of Science, Garrison-on- 

 Hudaon, N. T. 



THE DUTY OF SCIENTIFIC MEN IN 

 CONSERVATION i 



The conservation movement of a few years 

 ago crystallized and brought to public at- 

 tention a great principle, one so far reaching 

 that its real significance and scope are even 

 to-day not generally grasped. Regardless of 

 how the term may be defined, the problem of 

 conservation involves the whole question of the 

 relation of our natural resources to the eco- 

 nomic life and upbuilding of the country. 

 We have to do not merely with the prevention 

 of waste and economical use of our resources, 

 but also with the problem of how these re- 

 sources may render their highest service in 

 building up local communities, maintaining 

 our industries, and contributing to a strong 

 civilization. 



■ We can point to considerable progress in 

 certain features of conservation during the 

 past decade. Scientific men have conducted 

 research of great value that already is result- 

 ing in new uses of various raw materials, in 

 more economical methods of handling them, 

 and in improved methods of perpetuating 

 those resources which are renewable; engi- 

 neers are giving more attention than formerly 

 to the problem of preventing unnecessary 

 losses in the exploitation of raw resources; 

 the more far-sighted leaders of industry have 

 an increasing appreciation of the relation of 

 natural resources to the permanence of their 

 own enterprises. And yet, the conservation 

 principle is making slow headway, when 

 viewed from the larger aspects of the economic 

 needs of the country. The loss through un- 

 necessary waste is still appalling, uneconomic 

 methods in the use and development of various 



1 This paper was presented at a joint meeting 

 on April 9, of three Committees on Conservation, 

 representing the National Academy of Sciences, the 

 National Research Council, and the American As- 

 sociation for the Advancement of Science. 



