The other subjects brought before this Conference were Earth Currents, Atmospheric Electricity, Accumulators or Secondary Batteries, and Telephones. There was an extremely able paper brought forward by Mr. T.D. Lockwood, the electrician of the American Bell Telephone Company, on Telephones, and the disturbances that influence their working. When that paper is published, it will well be worth your careful examination. Papers were also read on the Transmission of Energy, and there were papers on many other subjects. So much for the Electrical Conference. Now, the Americans at the present moment are suffering from a mania which we, happily, have passed through, that is, the mania of exhibitions. While we were at Philadelphia, there was an exceedingly interesting exhibition held. I do not intend to say much about that exhibition, for the simple reason that Professor G. Forbes has promised, during the forthcoming session, to give us a paper describing what he saw there, and his studies at Philadelphia; and I am quite sure that it will be a paper worthy of him, and of you. But, apart from this exhibition at Philadelphia, I could not go anywhere without finding an exhibition. There was one at Chicago, another at St. Louis, another at Boston; everybody was talking about one at Louisville, where I did not go; and there were rumors of great preparations for the "largest exhibition the world has ever seen," according to their own account, at New Orleans. However, I satisfied myself with seeing the exhibition at Philadelphia, which consisted strictly of American goods, and was not of the international nature general to such exhibitions. But it was a fine exhibition, and one that no other single nation could bring together.