556 



SCIENCE 



[N. S. Vol. LII. No. 1354 



forester in Natal, delivered the presidential 

 address to Section C on "Causes leading 

 towards progressiTO evolution of the flora of 

 South Africa." In Section D the presidential 

 address was delivered by Mr. 0. W. Mally, 

 Cape Entomologist, whose subject was " Some 

 zoological factors in the economic develop- 

 ment of South Africa." The Eev. H. A. 

 Junod, president of Section E, gave a most 

 interesting address on " The magic conception 

 of nature among Bantus." "Labor condi- 

 tions in South Africa" was the subject of 

 Professor E. Lehfeldt's presidential address to 

 Section F. An evening lecture was delivered 

 by Professor J. A. "Wilkinson on " The nitro- 

 gen problem." 



The South African medal and grant were 

 awarded to Professor E. Warren. Johannes- 

 burg is now the seat of the headquarters of 

 the association, and the next meeting will be 

 held at Durban in July, 1921. 



SCIENTIFIC NOTES AND NEWS 

 At the anniversary meeting of the Eoyal 

 Society on !N'ovember 30 the following medals 

 were conferred by the retiring president. Sir 

 Joseph Thomson: A Eoyal medal to Mr. W. 

 Bateson, for his contributions to biological 

 science, especially his studies in genetics, and 

 a Eoyal medal to Professor G. H. Hardy, for 

 his researches in pure mathematics, partic- 

 ularly in the analytic theory of numbers; the 

 Copley medal to Mr. H. T. Brown, for his 

 work on the chemistry of carbohydrates, on 

 the assimilation of atmospheric carbon dioxide 

 by leaves, and on gaseous diffusion through 

 small apertures; the Eimiford medal to Lord 

 Eayleigh, for researches into the properties of 

 giLses at high vacua; the Davy medal to Mr. 

 C. T. Heycock, for his work in physical chem- 

 istry, especially on the composition and con- 

 stitution of alloys; the Darwin medal to Pro- 

 fessor E. H. Biffen, for his work on scientific 

 principles applied to the breeding of plants; 

 and the Hughes medal to Professor 0. W. 

 Eichardson, for his work in experimental 

 physics, especially thermionics. 



At the meeting of the Geographical Society 

 of Philadelphia, held on December 1, the 



Elisha Kent Kane gold medal of the society 

 was conferred on Dr. A. Hamilton Eice in 

 recognition of his pioneer exploratory work in 

 South America. 



The Franklin Institute of the State of 

 Pennsylvania acting through its committee 

 on science and the arts, at its meeting on 

 November 17, 1920, awarded to Dr. W. L. E. 

 Emmet, of Schenectady, its EUiott Cresson 

 Gold Medal. The wording of the award is as 

 follows: "After a careful consideration and 

 study of Dr. Emmet's work relating to ship 

 propulsion, the institute is of the opinion that 

 it deserves the highest award in its gift for 

 the recognition of inventions of signal im- 

 portance and awards to Dr. W. L. E. Emmet 

 the Elliott Cresson Medal in recognition of 

 his notable contributions to the art of ship 

 propulsion !" 



The gold medal of the British Institution 

 of Mining and Metallurgy, has been awarded 

 to Sir Thomas Kirke Eose " in recognition of 

 his eminent services in the advancement of 

 naetallurgical scince, with special reference to 

 the metallurgy of gold." 



Sm William Beale has been elected presi- 

 dent of the Mineralogical Society, London. 



Dr. James M. Taylor, since 1873 professor 

 of mathematics at Colgate University, has re- 

 tired from active service. 



Dr. John B. Watson has resigned from the 

 professorship of psychology which he has held 

 since 1908 at the Johns Hopkins University. 



Dr. D. E. Hooker has resigned his position 

 as associate professor of physiology in the 

 Johns Hopkins Medical School, to engage en- 

 tirely, in research. 



Professor C.-E. A. Winslow, of the Yale 

 University School of Medicine, has been 

 granted leave of absence for the spring term 

 in order that he may assume the directorship 

 of the public health activities of the League of 

 Eed Cross Societies at Geneva. Professor 

 Winslow wiU return to New Haven for the 

 opening of the fall term, October 1 next. 



Dr. Eobert K. Nabours, professor of zool- 

 ogy and experiment station zoologist in the 



