November 17, 1922] 



SCIENCE 



569 



tifle fields in the Kttsburgh district. The sub- 

 jects of lectures will be: (1) "Electron emis- 

 sion from heated metals"; (2) "Electron emis- 

 sion from thoriated filaments"; (3) "Methods 

 of controlling electron currents in high 

 vacuum." 



Dh. James Ewing, professor of pathology at 

 Cornell University Medical College, New York, 

 delivered the 1922 Mii'tter lecture on surgical 

 pathology, before the College of Physicians of 

 Philadelphia, on November 1. His subject was 

 "The principles of the radiation treatment of 

 cancer." 



HoBART College has recently formed a 

 Science Club, the purpose of which is to pro- 

 mote science among the students of Hobart by 

 means of lectures to which the people of 

 Greneva are invited. The first lecture was held 

 on Oetdber 31, when Dr. C. E. K. Mees .spoke 

 on "The road to wealth." 



Dr. Robert Barany, professor of otology of 

 the University of Upsala, Sweden, and winner 

 of the Nobel prize in medicine in 1914, gave a 

 two weeks' lecture course and steveral clinics 

 for eye specialists and neurologists in St. 

 Louis from October 9 to 21. Dr. Barany was 

 the guest of honor of the American Academy of 

 OphthaJmology and Otology, which held its 

 annual meeting in Minneapolis, last month. 

 Dr. Barany will give a similar course of lec- 

 tures in Chicago, Denver, Los Angeles, Hous- 

 ton, Cincinnati, Cleveland, Boston and New 

 York. 



The Huxley lecture on "Evolutionary tend- 

 encies in man's body" was given at the 

 Charing Cross Hospital Medical School by Sir 

 Arthur Keith, M.D., P.R.S., on November 8. 



The Netherlands Medical Association has 

 arranged to celebrate the Pasteur centennial at 

 Amsterdam on November 25. Addresses will 

 be made by specialists in medicine, chemistry 

 and microbiologic technic. Dr. A. Calmette, 

 of the Pasteur Institute at Paris, will deliver 

 an address. 



A formal university function commemora- 

 ting the centenaries of both Mend-el and Pas- 

 teur will be held by St. Louis University on 

 the evening of Deeem'ber 14. The addi-ess on 



Mendel will be delivered by Professor H. S. 

 Jennings and the address on Pasteur by Pro- 

 fessor Viietor C. Vaughan. The ceremony will 

 be held in the university auditonium. 



W. H. Wesley, for forty-seven years as- 

 sistant secretary of the Royal Astronomical 

 Society, died on Ocober 27, in his eighty- 

 second year. 



The death is announced of Dr. Alexander 

 Crura Brown, professor of chemistry in Edin- 

 burgh University from 1869 until his retire- 

 ment in 1908. 



Professor A. V. Vassiliepp, of the Uni- 

 versity of Petrograd, writes : "Through the 

 death on September 23, 1922, of Dr. Lev 

 Alexandroviteh Tchugaiev, professor of chem- 

 istry in Petrograd University and director of 

 the Institute for the Study of Platinum, the 

 science of chemistry has lost a most devoted 

 student. Professor Tchugaiev died at the age 

 of forty-nine years from typhoid fever. The 

 premature death of this energetic scholar pos- 

 sessing great knowledge and a broad mind and 

 whose conduct has been always guided by the 

 high ideal of devotion to science adds a new 

 great loss to so many suffered by Russian 

 science within the few past years. The first 

 studies of Tchugaiev had for their object the 

 groups of terpenes and of camphor as well as 

 optical properties of organic compounds. But 

 his most important researches, published in 

 the Comptes Bendus, in the Journal of the 

 Chemical Society, in the Zeitschrift fiXr Aiwr- 

 ganische Chemie and in the Journal of the 

 Physico- Chemical Society of Russia, related to 

 the study of complex compounds of cobalt, 

 nickel and platinum. The last years of his 

 indefatigable work were especially devoted to 

 the study of platinum compounds, their elec- 

 tric conductivity, isomerism, etc. Perhaps 

 the most important of all his investigations 

 relate to the coordination theory of Alfred 

 Werner, to the development of which Tchugaiev 

 contributed not a little." 



The one hundred and seventeenth regular 

 meeting of the American Physical Society iwill 

 l>e held in Chicago, at the Ryei-son Physical 

 Laboratory, on Saturday, December 2. If ithe 

 length of the progi'am requires it, thei'e will 



