728 



SCIENCE. 



[N. S. Vol. XXI. No. 541. 



engineering, Pennsylvania State College, 

 State College, Pa., next read a paper giving 

 the results of his experiments on 'Tests of 

 Cold Drawn Steel Elevator Guides.' He 

 stated that many engineers were of the 

 opinion that the cold rolling improved the 

 tensile strength of steel more than did cold 

 drawing. The paper called attention to 

 tests recently made by the author showing 

 the comparative strengths in transverse 

 loading of hot-rolled and planed T-shaped 

 elevator guide-bars supported on 24-inch 

 centers, as compared with cold-drawn bars 

 made from hot-rolled bars. The open 

 hearth steel which was used contained from 

 0.12 to 0.15 per cent, of carbon. The hot- 

 rolled bars weighed 14f pounds per foot, 

 and after rolling 14 pounds per foot. The 

 autographic stress-strain diagrams of the 

 bar show that the actual elastic limit was 

 increased from 13,900 pounds with the hot- 

 rolled bars to 35,000 pounds with the cold- 

 drawn bars, and that the yield point was 

 increased from 17,500 to 38,500 by the 

 process of cold-drawing; that the cold- 

 drawn steel not only deflected less under a 

 given load, but that it suffered less perma- 

 nent set. The paper will be published by 

 the American Machinist. 



The last paper of the morning was by 

 C. M. Woodward and was on 'The Track 

 Pressure Resulting from an Eccentric 

 Weight.' The paper elicited considerable 

 discussion from the mathematical engineers 

 who were present. It will be published by 

 the St. Louis Academy of Science. 



The session of Friday afternoon was de- 

 voted to engineering education. The vice- 

 presidential address of the retiring vice- 

 president, Calvin M. Woodward, dean of 

 the School of Engineering and Architec- 

 ture, Washington University, St. Louis, 

 Mo., on 'Recent Progress in Engineering 

 Education,' was true to its subject, and as 

 it has been presented in the pages of Sci- 



ence for January 6, 1905, nothing further 

 need be said. 



Edgar Marburg, professor of civil engi- 

 neering, University of Pennsylvania, next 

 described the new engineering building of 

 the University of Pennsylvania. It is 

 expected that it wiU cost $700,000, and 

 with its new additional equipment will cost 

 $800,000. It wiU be capable of providing 

 for 500 engineering students in civil, me- 

 chanical and electrical engineering. One 

 of the noteworthy features is that of a 

 large number of small rooms each contain- 

 ing comfortably not over fifteen students. 

 These are to be used for recitation rooms 

 and quizzes. Larger assembly rooms for 

 all the sections of the class are also pro- 

 vided, where one of the instructors can 

 lecture to the class as a whole. This sys- 

 tem of instruction and also the details of 

 the building were discussed at considerable 

 length by the educators, present. 



'Desired Requirements for Entrance to 

 Engineering Colleges' was the subject of a 

 paper by William Kent, dean of the Col- 

 lege of Applied Science, Syracuse Univer- 

 sity, Syracuse, N. Y. He stated that the 

 present requirements included English, 

 history, mathematics, physics, science and 

 modern languages, each of which cultivates 

 a separate group of intellectual faculties. 

 At Syracuse University a change has been 

 made in the direction of broadening the 

 entrance requirements so as to require six 

 groups of study, and including free-hand 

 drawing as one of the essential subjects. 

 It is now proposed to make another change 

 so as to require studies in seven groups, 

 which, besides free-hand drawing, physics 

 or chemistry, shall include one or more 

 natural sciences. The following advan- 

 tages are claimed for the proposed entrance 

 requirements. First, the requirement of 

 seven studies instead of eight makes it 

 easier for high schools to give a thorough 

 preparation. Second, it will decrease the 



