Apeil 23, 1920] 



SCIENCE 



411 



twenty-third, Professor K. W. Wood, of the 

 Johns Hopkins University, lectures on " Invis- 

 ible Light in War and Peace." 



Dr. James E. Angell, professor of psychol- 

 ogy in the University of Chicago and dean of 

 tlhe university faculties, this year chairman of 

 the National Eeseareh Council, has been 

 elected president of the Carnegie Corporation, 

 New York. 



' Professor Theodore W. Richards and Pro- 

 fessor George D. Birkhoff, of Harvard Univer- 

 sity, have been elected members of the Danish 

 Academy of Sciences. 



The Royal Irish Academy has elected as hon- 

 orary members Professor George Ellery Hale, 

 Professor A. E. H. Love, Sir Ernest Ruther- 

 ford and M. Henri Louis le Chatelier. 



The founder's medal of the Royal Geograph- 

 ical Society has been awarded to Mr. H. St. 

 Jo^hn B. Philby, for his two journeys in south- 

 central Arabia, 1917 and 1918; the Patron's 

 medal to Professor Jovan Cvijic, rector of the 

 University of Bplgrade, for studies of the geog- 

 raphy of the Balkan Peninsula; the Victoria 

 medal to Lieutenant-Colonel H. S. L. Winter- 

 botham, for his development of scientific meth- 

 ods of artillery siu-s^ey and the production of 

 maps of inaccessible areas. 



Officers of the Malacological Society of 

 London for 1920 were elected at the annual 

 meeting on February 13 as follows : President : 

 G. K. Gude; Vice-Presidents: H. 0. N. Shaw, 

 T. Iredale, J. R. le B. Tomlin, and A. S. 

 Kennard; Treasurer: R. Bullen Newton; 

 Editors: B. B. Woodward; Secretary: A. E. 

 Salisbury. 



A correspondent writes : " The many 

 friends of Professor Ludwig von Graff, 

 formerly head of the Zoological Institute of 

 the University at Graz, Austria, and well 

 known for his work upon the Plathelminths, 

 will be sorry to hear that he is suffering with 

 arteriosclerosis, and that since the beginning 

 of the war he has not been able to do any 

 mental work. Owing to the great deprecia- 

 tion of Austrian money, he and his family are 

 in straitened circimistances." 



William T. Sedgwick, professor of biology 

 at the Massachusetts Institute of Technology, 

 left the United States this week for England, 

 where he will serve as the institute's first ex- 

 change professor to the universities of Leeds 

 and Cambridge. 



Dr. Edward P. Hyde, director of the Nela 

 Research Laboratory, Cleveland, sailed for Eu- 

 rope on April 13, in connection with business 

 for the International Commission on Illumina- 

 tion, of which he is the vice-president. He ex- 

 pects to return to this country in July. 



Dr. J. O. Halverson, associate in the depart- 

 ment of nutrition of the Ohio Agricultural Ex- 

 periment Station, the past three years, has been 

 appointed to take charge of similar work in 

 the Agricultural Experiment Station at Ra- 

 leigh, N. C. 



Mr. R. a. MoGinty, associate professor of 

 horticulture in the Colorado Agricultural Col- 

 lege and Experiment Station, has resigned to 

 enter the employment of a canning company at 

 Canon City, Colorado. 



Mr. R. H. Bullard, instructor in chemistry 

 at Hobart Collie, has accepted a jrosition in 

 the research department of the Eoessler & Has- 

 slacher Chemical Co., Perth Amboy, N. J. 



Dr. Pier Andrea Saccardo, the distinguished 

 mycologist and professor emeritus of the Royal 

 University of Padua, Italy, died on February 

 12, in the seventy-fourth year of his age. Pro- 

 fessor Saccardo was a member of numerous 

 academies and societies both Italian and for- 

 eign, and is known to all pathologists and my- 

 cologists by his great Sylloge Fungorum. 



Mr. J. S. MacArthur, the English indus- 

 trial chemist, known for his part in the discov- 

 ery of the cyanide process for the extraction 

 of gold and other metals, and for the work in 

 chemistry and mining, died on March 16. 



The Dartmouth Scientific Association or- 

 ganized in February, 1870, observed its fiftieth 

 anniversary on the 18th inst. by the presenta- 

 tion of an address on " The Founders " by the 

 only living member of the original seven, 

 Dean-Emeritus Charles F. Emerson. Pro- 

 fessor Emerson has been an active member 



