Chas. Manneback: I said (top second page of paper) “An electric disturbance, i. e., a discontinuity of voltage or current, is always propagated along any line at the constant speed

.” I added that “this is true whether there is resistance and leakance or not.” Dr. Karapetoff is not sure that this is correct; it seems to him “that the velocity of propagation depends on the presence of resistance and leakance and is thereby reduced. “This difference in opinions is due, I believe, to the fact that we do not think of the same thing being propagated. The question raised is of great theoretical importance and deserves a careful examination.