724 PROCEEDINGS OF THE AMERICAN ACADEMY. 



laws, and to reconcile them with the Principle of Relativity, which 

 rests on the experiments of Michelson and Morley, and of Bucherer, 

 that we have adopted the principles of non-Newtonian Mechanics. 



These principles, bizarre as they may appear, offer the only method 

 of preserving the science of mechanics substantially in its present form. 

 If later, when more complex systems are considered, and especially 

 when we deal with acceleration, these views prove untenable, it will 

 then be necessary to revolutionize the whole of mechanics. 



Research Laboratory of Physical Chemistry, 

 Mass. Inst, of Technology, 

 Boston, May 11, 1909. 



