November 21, 1919] 



SCIENCE 



481 



construction of new buildings, for repairs to 

 old buildings, and for the installing of scien- 

 tific equipment. The minister of public in- 

 struction also requests 900,000 francs to com- 

 plete the construction work at the Institute 

 of Applied Chemistry; 5,243,000 francs for 

 the extension of the work of the departments 

 of chemistry; 800,000 francs for the enlarge- 

 ment of the Radium Institute, and 1,500,000 

 francs for the construction of a laboratory of 

 physical chemistry. 



The organization of the new department of 

 hygiene and preventive medicine at Cor- 

 nell University has been completed, the fol- 

 lowing appointments to the staff having been 

 made: Dr. Haven Emerson, professor of hy- 

 giene and preventive medicine, and director 

 of the department; Dr. James Stevenson 

 Allen, assistant professor of hygiene and pre- 

 ventive medicine, and assistant director of 

 the department; Dr. Frank C. Balderry. med- 

 ical adviser; Drs. J. Ralph Harris, Lawrence 



B. Chenowith, Richard Kimpton, Claude E. 

 Case and John A. Herring, assistant medical 

 advisers for men and Drs. Margaret D. Baker 

 and Katherine Porter, assistant medical ad- 

 visers for women. 



Dr. Eli Kennerly Marshall, Jr., Wash- 

 ington, D. C, formerly associate professor of 

 pharmacology :n Johns Hopkins University, 

 has been appointed head of the department 

 of pharmacology at Washington University 

 Medical School. Other appointments are 

 A. W. L. Bray, associate in anatomy; Alfred 



C. Kolls, associate in pharmacology; Edgar 

 Allen, instructor in anatomy and Edward A. 

 Doisy, instructor in biological chemistry. 



Dr. Emil Goetsch, formerly resident sur- 

 geon of the Peter Bent Brigham Hospital, 

 Roxbury, Massachusetts, has been appointed 

 head of the surgical department of Long 

 Island College, New York. 



Professor Howard E. Simpson, associate 

 professor of geology and physiography at the 

 University of North Dakota, has been pro- 

 moted to a professorship of geographic 



Mr. B. Mouat Jones, assistant professor of 

 chemistry in the Imperial College of Science 

 and Technology, London, has been elected to 

 the chair of chemistry in the University 

 College of Wales, Aberystwyth, in succession 

 to Professor Alex. Findlay. 



DISCUSSION AND CORRESPONDENCE 



A HELIUM SERIES IN THE EXTREME ULTRA- 

 VIOLET 



It has been shown that the helium series 

 first discovered in a terrestrial source by Fow- 

 ler can be represented by the formula 



109750/-^^, 



U5) 



(1)")^ 



where mi has the value of 3 or 4'- 

 , If mi be given the value 2, and mi the suc- 

 cessive value 3, 4 and 5, lines result at wave- 

 length 1640.1, 1214.9 and 1084.7. My previous 

 investigations of the helium spectrum did not 

 afford much evidence as to the existence of 

 these lines ;^ a recent search, however, has been 

 more successful. With a powerful disruptive 

 discharge in helium, a sharp, fairly strong 

 line appears at 1640.2; no trace of it is found 

 in hydrogen under the same electrical condi- 

 tion and it does not occur in helium when the 

 discharge circuit is free from capacity. Under 

 the same violently disruptive condition the 

 line at 1216, always present in helium and 

 hydrogen, develops a satellite on its more re- 

 frangible side, this satellite is not well resolved, 

 but its wave-length appears to be about 1215.1. 

 The region that should be occupied by 1084.7 

 is obscured by a strong pair at 1085, pro'bably 

 due to an impurity. 



, Owing to the difficulties of vacuum spectro- 

 scopy it is perhaps unwise to claim that the 

 evidence in this case is conclusive. I regard it 

 as very probable, however, that two members 

 of this series in helium have been found in the 

 extreme ultra-violet. 



Theodore Lyman 

 Harvard University, 

 October 25, 1919 



1 Evans, Phil. Mag., 29, p. 284, 1915. 



2 Astrophys. Jour., 43, p. 92, 1916. 



