350 



SCIENCE 



[N. S. Vol. XLIV. No. 1132 



bergen in the British Museum. Mr. Lund- 

 strom is taking some plants to see if they will 

 grow there. 



UNIVERSITY AND EDUCATIONAL 

 NEWS 



Recommendations that a fund of more than 

 $3,000,000 for the treatment of cancerous, 

 nervous and disabling ailments be given to the 

 University of Pennsylvania Hospital has been 

 made by Dr. Winford H. Smith, superintend- 

 ent of the Johns Hopkins Hospital, Baltimore, 

 who was selected by the trustees of the fund, 

 jointly the incorporated trustees of the Phila- 

 delphia Yearly Meeting of Friends and a body 

 organized as the board of managers of the 

 Jeanes Hospital, to come to Philadelphia and 

 make a survey of its hospitals and medical 

 work and give them his opinion as to where 

 the fortune would work the greatest benefit. 

 The fund is the estate and its increment 

 willed for the purpose by Anna J. Jeanes, a 

 noted Friend philanthropist, who died in 1908. 



Mr. Blanchard Randall and Dr. Howard 

 Kelly have presented to the Johns Hopkins 

 Hospital a collection of portraits of medical 

 men said to be of great value. The collection 

 given by Mr. Randall, who is one of the trus- 

 tees of the institution, consists of forty-eight 

 portraits. Dr. Kelly, who is one of the con- 

 sulting physicians, added eleven portraits. 



Miss S. E. S. Mair and Mrs. A. M. Chalmers 

 Watson, on behalf of women medical gradu- 

 ates, students and their friends, have offered 

 to pay to the Edinburgh University $20,000 

 for the medical education of women. 



The report of President R. S. Hyer to the 

 board of trustees shows that the enrollment 

 of the initial year of the Southern Methodist 

 University reached 706 students, 453 of whom 

 were in the academic department. Over 300 

 students in the academic department carried 

 science courses during the year. In the 

 choice of a science, chemistry, physics, biol- 

 ogy and geology registered practically the 

 same number. The total enrollment is said 

 to establish a new record for the initial year 

 in American universities. The University of 

 Chicago registered 698 in its first year. 



Dr. W. W. Cort, Ph.D. (Illinois, '14), pro- 

 fessor of biology at Macalester College, St. 

 Paul, Minn., has accepted a position as assist- 

 ant professor of zoology at the University of 

 California. Dr. H. D. Gould, Ph.D. (Prince- 

 ton, '16) has been appointed instructor in 

 zoology in place of Assistant Professor J. A. 

 Long on Sabbatical leave. 



Appointments at the Massachusetts Insti- 

 tute of Technology have been made as follows : 

 Dr. Frederick G. Keyes, associate professor of 

 physico-chemical research; Eugene Olaf 

 Christiansen, instructor in business manage- 

 ment; Clarence K. Reiman, instructor in in- 

 organic chemistry; Ernest W. Wescott, re- 

 search associate in applied chemistry; Robert 

 E. Wilson, research associate in applied chem- 

 istry; Charles L. Burdick, research associate 

 in physical chemistry; John G. Barry, in- 

 structor in geology and mineralogy, and Alex- 

 ander Klemin, instructor in aeronautical engi- 

 neering. 



DISCUSSION AND CORRESPONDENCE 



THE FUNDAMENTAL EQUATION OF 

 MECHANICS (IV) 



In his paper on " The Accepted Facts of 

 Dynamics," 1 Professor Hoskins proposes as a 

 sort of challenge a simple problem which he 

 believes can not be solved by means of my 

 fundamental equation F/F' = a/a' without the 

 aid of a further principle which he calls the 

 additive property of mass. This challenge 

 seems to me a fair one, and without reopening 

 the general discussion, I should like to show 

 how easy it is to offer a solution of this prob- 

 lem based entirely on the principles I have set 

 forth as sufficient. 2 The problem is as follows : 



A first body, A', is observed, to have an accelera- 

 tion o' when acted on by a force F; a second body, 

 A", is observed to have an acceleration a" when 

 acted on by an equal force F; if the two are com- 

 bined into a single body, what acceleration will 

 this body have if acted on by a force F% 



i Science, June 30, 1916. 



2 Science, February 5, 1915; July 30, 1915; and 

 especially March 3, 1916. Further discussion of 

 this topic may be expected to appear in the Amer- 

 ican Mathematical Monthly. 



