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Updated: May 7, 2025
Telegraphic communication was everywhere interrupted except, indeed, that it was in some cases found practicable to work the lines without batteries by the agency of the earth-currents alone; sparks issued from the wires; gorgeous auroras draped the skies in solemn crimson over both hemispheres, and even in the tropics; the magnetic needle lost all trace of continuity in its movements and darted to and fro as if stricken with inexplicable panic.
Telegraphic communication was everywhere interrupted except, indeed, that it was, in some cases, found practicable to work the lines without batteries, by the agency of the earth-currents alone: sparks issued from the wires; gorgeous auroræ draped the skies in solemn crimson over both hemispheres, and even within the tropics; the magnetic needle lost all trace of continuity in its movements, and darted to and fro as if stricken with inexplicable panic.
The coming down along the highway of the strings thrilled and stirred and awed the hearts into which those strings led, and where they were so tightly knotted. The earth-currents spread the news. Man heard; he felt; he knew: vaguely, blindly, wearily, yet very really he heard and felt and recognized that help, a Friend, some One, was nearing.
He did not know that the shock to which he had subjected the enfeebled lunatic was precisely what was needed to rouse every effort of nature to effect a cure. He could not measure the influence of the subtle earth-currents that breathed over him.
The case is similar to that of the rotation of crops in its relation to scientific microbiology. The art of mining may get ahead of the science of physiography in respect of earth-currents and lines of least resistance, as showing where mineral lodes may be expected. Yet there is no doubt whatever that science will not in the one case lag so far behind as it has done in the other.
The result of their action was, that a trench four feet deep was dug entirely around the magazine, and in its bottom was laid a continuous line of sheet copper four inches in width: to this the plate of each rod was soldered, and then the soil was replaced. No one could doubt now that the stealthy upward stroke would be caught and the mysterious earth-currents overcome.
Some of the curious and puzzling empirical rules gained from the life-long experience of miners in regard to the varying richness and poorness of mineral lodes, according to the directions in which they strike whether north, south, east or west may very probably be explained, and to some extent justified, by the fuller light which science may throw upon the conditions determining the action of earth-currents in producing results similar to those of electro deposition.
Deflections of the compass, due to the passing of earth-currents along the natural lines of conductivity in the soil or the rocks, are so frequently noticed as to be a source of calculation to the scientific surveyor and astronomer.
In other words, much that is now obscure, including the true origin of the earth's magnetism, must be to some extent cleared up before the reasons for the seemingly erratic strike of earth-currents and of richness in mineral lodes can be fully explained.
I see the puzzlement you girls are in who haven't got to earn your own living. You don't know what on earth to do with yourselves. You read Ruskin, and think you should be earnest; but you don't know what to be earnest about. Then you take to improving your mind; and cram your head full of earth-currents, and equinoxes, and eclipses of the moon. But what does it all come to?
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