622 APPLIED MATHEMATICS 



be only exceptional, the surest way in practice would-be still to act 

 as if we continued to believe in them. They are so useful, it would be 

 necessary to keep a place for them. To determine to exclude them 

 altogether would be to deprive one's self of a precious weapon. I hasten 

 to say in conclusion we are not yet there, and as yet nothing proves 

 that the principles will not come forth from the combat victorious 

 and intact. 



SHORT PAPERS 



Three short papers were read in the Section of Applied Mathematics, the first 

 by Professor Henry T. Eddy, of the University of Minnesota, on " The Electro- 

 magnetic Theory and the Velocity of Light." 



The second paper was presented by Professor Alexander Macfarlane, of Chat- 

 ham, Ontario, "On the Exponential Notation in Vector-analysis." 



The third paper was presented by Professor James McMahon, of Cornell Uni- 

 versity, " On the Use of N-fold Riemann Spaces in Applied Mathematics." 



