November 10, 1922] 



SCIENCE 



533 



De. Selig Hecht, national research, fellow 

 in chemistry, has been app-ainted research 

 fellow in physical chemistry at the Harvard 

 Medical School, frhere 'he will continue his 

 investigations. 



Peopessor "William A. Riley, chief of the 

 division of entomology in &e University of 

 Minnesota, returned in September from a 

 three months stay in Porto Eioo, where he 

 made an intensive study of the relation of soil 

 condiitions to the .propagation of parasites, 



Professor Elias J. Dueand, of the depart- 

 ment of botany of the University of Minnesota, 

 is on teave this year ibeeause of ill health. 



Dr. W. W. Stifler has accepted an ap- 

 pointment from .tiie China Medical Board of 

 the Bockefeller Foundation and the trustees of 

 Canton Christian College as visiting professor 

 of physics at Canton Christian College for- the 

 academic year 1922-1923. Mr. Stifler has been 

 assoidated with the Peking Union Medical Col- 

 lege, since its reorganization in 1917 by the 

 China Medical Board, as head of the physics 

 department and dean of itlhe Premedical School 

 in Pekioig. After his year in Can'ton he ex- 

 pects to return to the United States. 



Dr. Arthur Bliss Dattof, associate in med- 

 i<3ine at the Yale School of Medicine, has been 

 given a year's leave of absence to serve as pro- 

 fessor of medicine at the Medical School of 

 Yale-in-China. Dr. and Mrs. Dayton are nofw 

 in Changsha. 



Dr. G. E. Bisbt has returned to the Manitoba 

 Agricultural College, Winnipeg, aft«r a year 

 with the Imperial Bureau of Mycology, Kew 

 Gardens, England. 



IssEi Yamamoto, assistant professor in the 

 Kyoto University Observatory, Japan, has re- 

 cently received appointment as volunteer re- 

 search assistant in the Yerkes Obsei-vatory. 

 He has been sent to the United States by the 

 Japanese government to spend about a year in 

 several of our observatories. 



Dr. Ludwik Silberstein, of the Researoh 

 Laboratory of the Eastman Kodak Company at 

 Rochester, N. Y., addressed the Franklin Insti- 

 tute of Philadelphia on November 2, on "The 



spectrum of neutral helium and the behavior of 

 its two electrons." 



Dr. August Krogh, professor of physiology 

 at the University of Copenhagen and Silliman 

 lectui'er at Yale University, will deliver the 

 second Harvey Society lecture, at the New 

 York Academy of Medicine, on Saturday, No- 

 vemibsr 11, on "Nervous and hormonal control 

 of oapUlary contractility." 



In continuation of the series of evening lec- 

 tures given in the spuing and fall in the ad- 

 ministration building of the Carnegie Institu- 

 tion of Wiashington, 16th and P Streets, Wash- 

 ington, D. C, a lecture was given on No^"ember 

 7 by Dr. C. G. Abbot, collaborator of the 

 Mount Wilson Observatory and assisitant sec- 

 retary, of the Smithsonian Institution, on "The 

 heat of the sun and other stars." On Novem- 

 ber 21 Dr. Louis A. Bauer, dii-ector of the De- 

 partment of Terrestrial Magnetism, will give a 

 lecture on "The greater problems of the earth's 

 magnfetism and electricity, and their 'bearings 

 in asitronomy, geology and physics." . Three 

 additional lectui-es will be given on succeeding 

 Tuesday evenings, announcements of whiA 

 will appear latei\ 



Professor Z. B. Jeffery delivered a lecture 

 on October 9 on Einstein's theory of relativ- 

 ity, at King's College, London, as an introduc- 

 tion to a 'Course of twenty-five lectures to be 

 given at the college on "The Mathematical 

 Theory of Relativity." 



As noted in Science recently the exercises 

 in connection with the dedication of the Ster- 

 ling Chemistry Laboratory will be held on 

 Wednesday, April 4, 1923. This date is the 

 anniversary of the first lecture in chemisti-y at 

 Yale by Professor Benj'amin Silliman on April 

 4, 1804. 



Lady Lockyer and Miss Loekyer are pre- 

 paring a biograp'hy of Sir Norman Lockyer, 

 the distinguished astronomer and editoa' of 

 Nature. 



The unveiling of 'the tablet in memory of 

 the late Professor Sir William Ramsay, 

 K.C.B., F.R.S., in Westminster Abbey by the 

 Prince of Wales, as patron of the Ramsay 



