October 22, 1909] 



SCIENCE 



557 



plication, and the student must at all times 

 be alive to the situation before him. It is 

 the province of the mathematician to point 

 out the limitations placed upon the use of 

 the principles, not in the spirit of criticism, 

 but of mutual help; for approximations 

 must come into the work of the engineer, 

 and a lot of the calculus used must be of 

 the rough and ready sort. If the treatment 

 can not be rigorous at all times it is the 

 province of the mathematician to point out 

 just how far the engineer may go and how 

 near ideal conditions he is working — not 

 to suggest that the whole structure is built 

 on an insecure foundation. The engineer 

 and mathematician can help one another, 

 on the side of the engineer in presenting 

 live problems in which the mathematician 

 should be interested, and on the side of the 

 mathematician in helping put the whole 

 subject on a safe foundation; both work- 

 ing with the spirit of mutual assistance 

 toward the doing of things worth while, 

 not only to the engineer, but also to the 

 mathematician. 



Ernest W. Ponzer 



SCIENTIFIC NOTES AND NEWS 



The Palmer Physical Laboratory of Prince- 

 ton University will be formally opened on the 

 evening of October 22, when Dr. Elihu Thom- 

 son will give the principal address. The 

 American Physical Society will meet at 

 Princeton on the following day, and in the 

 evening there will be a reception at the Nassau 

 Club. 



Dr. T. W. Eichards, professor of chemistry 

 at Harvard University, has been given the 

 honorary degree of doctor of philosophy by the 

 Czech University of Prague. 



The British Institute of Marine Engineers 

 has awarded the Denny gold medal to Mr. W. 

 P. Durtnall, for a paper on the generation and 

 electrical transmission of power. 



It is proposed to celebrate the fortieth year 

 of university teaching of Professor Enrico H. 



Giglioni, of Florence, by presenting him with 

 an album containing the autograph signatures 

 of zoologists and anthropologists throughout 

 the world. Those who wish to join in this 

 testimonial are requested to send their auto- 

 graph to Dr. Enrico Balducci, Via Romana 

 19, Florence. 



Dr. Josef von Hepperger, professor of as- 

 tronomy at Vienna, has been appointed di- 

 rector of the University Observatory. 



The trustees of the Lincoln State School 

 and Colony, at Lincoln, 111., have provided for 

 the establishment of a department of clinical 

 psychology in the state institution for the 

 feeble-minded. Dr. Edmund B. Huey, who 

 has spent the past year in clinical study in 

 Paris, on leave from the University of Pitts- 

 burgh, has been appointed to take charge of 

 the new department, and has begun his work 

 at Lincoln. 



Professor E. S. Tarr, of the department of 

 geology of Cornell University, has sailed for 

 Europe, where he will spend a year on sab- 

 batical leave. 



News has been received from Dr. T. G. 

 LongstafF to the effect that he has arrived at 

 Leh, in Ladak, after having connected the 

 Tarim river with the Saichar glacier. 



Mr. Shaceleton has left England on a 

 continental tour, and is to tell the story of his 

 Antarctic expedition in the principal cities of 

 Europe. On October 9 he was to be the guest 

 of the Eoyal Geographical Society at Copen- 

 hagen. He will proceed to Stockholm and 

 Christiania, and afterwards will visit Brussels, 

 Antwerp, Berlin, Eome, Vienna and Paris. 

 In March he leaves England for America on 

 an extended tour. 



The program for the meeting of the Amer- 

 ican Mathematical Society on Saturday, Oc- 

 tober 30, will include a paper by Professor 

 Carl Eunge, Kaiser Wilhelm professor at 

 Columbia University, on " A hydrodynamic 

 problem treated graphically." 



The faculty of fine arts of Columbia Uni- 

 versity announces a series of four lectures to 

 be given on Monday afternoons at 4:10 o'clock 

 in Havemeyer Hall, by Charles E. Pellew, 



