July 21, 1922] 



SCIENCE 



73 



at the University of Wisconsin, succeeding 

 Professor G. C. Comstock, retired, took up his 

 new work July 1. Professor Comstock has 

 been director of the observatory since 1889 and 

 has reached the age of retirement. He has been 

 on the faculty since 1887, and was dean of the 

 Graduate School from 1906 to 1920. 



Professor Tracy E. Hazen, of Barnard 

 College, Columbia University, sailed from New 

 York on June 21 for Buenaventura, Columbia. 

 Early in July he expects to join the expedition 

 of Dr. Francis W. Pennell and Mr. Ellsworth 

 Killip for botanical exploration of the Cor- 

 dillera Central of the Andes, returning to New 

 York in Septemiber. 



Professor J. A. Detlefsen, of the Univer- 

 sity of Illinois, will take a year's leave of ab- 

 sence during which he will devote himself to 

 the study of the inheritance of disturbances of 

 orientation. 



Professor June E. Dov^net, head of the 

 department of psychology of the University 

 of , Wyoming, has been granted leave of ab- 

 sence for the next academic year and will 

 spend the year in study and travel, part of 

 the time abroad. Miss Louisa C. Wagoner will 

 serve as chairman of the department during 

 Professor Downey's absence and will be assist- 

 ed by Donald A. Laird of the University of 

 Iowa. 



During the week of July 24 to 28, Professor 

 H. S. Jennings, of the Johns Hopkins Uni- 

 versity, will give before the summer session of 

 the Colorado State Normal School at Gunni- 

 son, Colorado, a series of five lectures on "Ad- 

 ventures in research on development and evo- 

 lution." 



The following popular lectures in physics 

 are being given this summer at the University 

 of Illinois : 



June 22, Production of sound by the applica- 

 tion of heat: Professor C. T. Knipp. 



June 29, Eelativity: Discussion of phenomena: 

 Associate Professor J. Kunz. 



July 6, Eecording of sound on photographic 

 films and its application to talking motion pic- 

 tures: Professor J. Tykociner. 



July 13, Wireless telegraph: H. A. Brown. 



July 20, Fatigue of metals: Professor H. P. 

 Moore. 



July 27, Theories of magnetism: Assistant 

 Professor E. H. Williams. 



August 3, The tones from bells: Professor P. R. 

 Watson. 



The second lecture of the series on physics 

 in industry, arranged by the London Institute 

 of Physics, was given on July 4 in the hall of 

 the Institution of Electrical Engineers, by Sir 

 J. Alfred Ewing, whose subject was "The 

 physicist in engineering practice, with special 

 reference to applications of thermodynamics." 



On June 7 a lecture was given by Professor 

 A. F. Holleman, of Amsterdam, at the Impe-. 

 rial College of Science and Technology, under 

 the auspices of the University of London, en- 

 titled "Recent researches on substitution in the 

 benzene nucleus." 



The fifth international Neo-Malthusian and 

 Birth Control Conference was held in London 

 on July 11-14, under the presidency of Dr. 

 C. V. Drysdale. , Many delegates from abroad 

 were present and the discussions were arranged 

 to take place in several sections. A visit to 

 Dorking was arranged to the Isirthplace of the 

 Reverend T. R. Malthus. 



We learn from Nature that the formal open- 

 ing of the newly estaiblished Metallograflska 

 Institutet of Stockholm has recently taken 

 place. The new institute is under the direc- 

 tion of Dr. Carl Benedicks, whose work on the 

 physical chemistry of metals is well known. 

 An inaugural address was delivered by Pro- 

 fessor Arrhenius, who referred to the inter- 

 national character of scientific research, as 

 shown by the presence of foreign representa- 

 tives at the ceremony, and by the review of 

 the history of metallography contained in the 

 address of Dr. Benedicks. 



The Italian Royal Committee for Scientific 

 Marine Investigations has assumed charge of 

 the Zoological Station at Rovigno, Istria, 

 which was formerly under German administra- 

 tion, and the station is now in active work, 

 under Professor Raffaele Issel as director. 



The Honorary Advisory Council for Scien- 

 tific and Industrial Research of Canada has 

 made a grant to the department of chemistry 

 of Macdonald College for an investigation of 

 soil acidity. The various methods proposed 

 for the measurement of soil acidity will be 



