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Updated: May 6, 2025
Instead of importing the German steel, as it was called, the Sheffield manufacturers began to make it themselves, principally from Dannemora iron imported from Sweden. The first English manufacturer of the article was one Crowley, a Newcastle man; and the Sheffield makers shortly followed his example.
The most important result of my visit was an introduction to Baron Tam, the proprietor and chief director of the great Dannemora Iron Mine. I was at once diverted for a time from my voyage to Copenhagen. I was most desirous of seeing in person this celebrated mine.
According to his statement all kinds of fragments of broken steel were used; but this is corrected by Le Play, who states that only the best bar steel manufactured of Dannemora iron was employed. Jars adds that "the steel is put into the crucible with A FLUX, the composition of which is kept secret;" and he states that the time then occupied in the conversion was five hours.
Besides, it generally created a sympathy between me and my entertainers. My visit to the Dannemora Mine at Osterby was one of peculiar interest. I may in the first place say that the immense collection of iron ore at that point has been the result of the upheaval of a vast volume of molten igneous ore, which has been injected into the rock, or deposited in masses under the crust of the earth.
She probably forgot how years had passed away, as she gazed once more on the face of her youthful and handsome lover. Besides copper, Sweden produces iron of great excellence, won from its celebrated mines of Dannemora, and largely imported into England for the manufacture of steel.
The temperature was so low, and the expense caused by the frozen mass so great, that the working was stopped. The iron mines of Dannemora, eleven leagues from Upsal, contain a large quantity of ice, according to a manuscript account by Mr.
The baron most willingly furnished me with several letters of introduction to his managers, and I proceeded to Dannemora by way of Upsala. I was much interested by this city, by its cathedral, containing the tomb of Gustavas Vasa, and by its many historical associations. But I was still more impressed by Old Upsala, about three miles distant. This is a place of great antiquity.
He had yet another object of his travels the prison at Dannemora and came there of a Sunday morning late in February. Its towers were bathed in sunlight; its shadows lay dark and far upon the snow. Peace and light and silence had fallen out of the sky upon that little city of regret, as if to hush and illumine its tumult of dark passions.
He built the first blast furnace in Sweden, and died in 1702, leaving the property to his son, who died in 1720. The heirs sold out in 1722 to a man named Grill, in whose family the property remained until 1800, when it was purchased by the ancestors of the present owners. The famous Dannemora mines, which produce the best Bessemer ore in the world, have been worked continuously since 1481.
You will know how to look at things, and at your hand I should expect much. "Here we are just lecturing away, and I am too tired to attempt anything, much less to do anything just now; but the goodwill of such men as you is a great stimulus, and will, I trust even with me, produce something else praiseworthy. Ever, my dear Nasmyth, yours most truly, M. FARADAY." Nuremberg St. Petersburg Dannemora.
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