Abstract

On those of Professor Elmore's hypotheses which appeared in his original article, I need make very few additional remarks. He restates them with undiminished confidence in this Review in January, 1918, but, except on one or two side issues, he makes no attempt to answer the careful and reasoned criticism to which I subjected them. The further developments of his theories, to which he calls my special attention, call for some examination, which however shall be brief