The heat accumulators gave moderate or intense heat, according to the chemical combinations through which the primary current passed, but there was neither glow nor light-flash. So, too, the cold accumulators gave off varying degrees of cold, for the same reason. In none of them was there either the electric shock or its effects, and all were tractable and free from danger in what we may term the electrical sense. The dynamic force of the primary and the intense heat or cold of the divisional currents, common prudence avoids. Still it would be easily possible, by chemical combination, to produce a current destructive of life and capable of annihilating nations, without hope or possibility of escape. "Your own scientists know," said Remo, "that with the direct current all that you have seen, and infinitely more, is but the result of a simple process, capable of infinite multiplication." "But what are the constituents of the medium in the accumulator, and what are the formulas of the various combinations?" "If you knew that you would know as much as we." This was the nearest a jest I had heard in Intermere, but I knew from the character of Remo's speech that the rest of the secret would remain hidden from me. As we sat at his table later he said: "You have been nearer to our secret than any one else in the outer world, and we shall see whether the seeds will grow into the tree of Knowledge and produce the fruits of Wisdom. Neither your people nor any other people could be trusted with this secret in their present moral condition. A few learned men dependent upon the rulers in one nation, knowing it, could and would plot the destruction and exploitation of all others. The sacrifice of human life and the accumulation of human woe and misery would be appalling. "If your leaders, with the suddenly awakened hunger for conquest and dominion, could literally command the thunderbolts and control the elements as against the rest of the world, they would sack Christendom in the name of Liberty, Humanity and the Babe of Bethlehem, but in the spirit of Mammon, Greed and selfish love of power and riches. "You will make some progress in discoveries along scientific and mechanical lines, but no real good to the race can result until these discoveries are turned to a nobler purpose than that of seizing commercial supremacy, subjugating alien and unwilling peoples, slaughtering those who resist, exploiting those who lay down their arms, gathering wealth regardless of justice and the rights of mankind and building up an artificial race in the form of a ruling class, who base their right to exclusive privileges on wealth and the perversion of every principle of justice and the Christianity they profess. "You have been wondering why, with our great knowledge and achievements, we do not go forth and dominate the world. What would it profit us? Could we find anything that would contribute to our enjoyments, our hopes, our aspirations? No.