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We cannot have a magnet with one pole: if we break a natural loadstone into a thousand pieces, each piece will have its two oppositely electrified poles complete within itself. In the voltaic circuit, again, we cannot have one current without its opposite. In the ordinary electric machine, the glass cylinder or plate, and the rubber, acquire opposite electricities.
"I believe," said Lemercier, as the coupe rolled through the lively alleys of the Bois de Boulogne, "that Paris is built on a loadstone, and that every Frenchman with some iron globules in his blood is irresistibly attracted towards it. The English never seem to feel for London the passionate devotion that we feel for Paris.
Models are therefore of every importance in moulding the nature of the child; and if we would have fine characters, we must necessarily present before them fine models. Now, the model most constantly before every child's eye is the Mother. One good mother, said George Herbert, is worth a hundred schoolmasters. In the home she is "loadstone to all hearts, and loadstar to all eyes."
And indeed, when I saw them, I could not but much commend the child for his fancy; for the first things that appeared were a silver punch or wine can and a ladle, then a gold watch, a pair of scissors, a small silver chafing-dish and lamp, a large case of mathematical instruments, a flageolet, a terrella or globular loadstone, a small globe, a dozen of large silver spoons, and a small case of knives and forks and spoons; in short, there was, I believe, the greatest part of the Portuguese captain's valuable effects.
Concerning the manner of operation in most parts of the works of nature: wherein, though we see the sensible effects, yet their causes are unknown, and we perceive not the ways and manner how they are produced. We see animals are generated, nourished, and move; the loadstone draws iron; and the parts of a candle, successively melting, turn into flame, and give us both light and heat.
You will remember why sailors dared not venture far out upon the ocean and search for a water route to the Eastern countries and islands. The time was soon coming, however, when they would dare to do so, and two wonderful inventions helped navigators very much. One came from the finding of the loadstone, or natural magnet. This is a stone which has the power of attracting iron.
Now, in July, less than three months from the time, this camp is forty-nine miles from the terminus of the road at Loadstone, while the constructing engineers and the track-layers are thirty-eight miles behind us. Do you see the problem?" "You can get an extension of time, can't you?" asked Tom. "We can -not! You see, boys, the S.B. & L. is the popular road.
They contained colorless volatile essences, of the nature of which I shall only say that they were not poisons phosphor and ammonia entered into some of them. There were also some very curious glass tubes, and a small pointed rod of iron, with a large lump of rock-crystal, and another of amber also a loadstone of great power.
And the two months expired, and my father saw that the magnet had turned unalterably to the loadstone in the Great Australasian Bight; and he said to me, "Go, and comfort your mother. I have told her your wish, and authorized it by my consent, for I believe now that it is for your good." I found my mother in the little room she had appropriated to herself next my father's study.
Will the Professor have the kindness to inform me by what steps of gradual development the ring and the loadstone, which were but yesterday the toys of children and idlers, have become the means of approximating the intelligences of remote continents, and wafting emotions unchilled through the abysses of the no longer unfathomable deep?
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