A Long Lost Art Re-discovered.
A Hard, a blacksmith of Quebec, Canada, is said to have discovered the long-lost art of hardening copper, known to the inhabitants of South and Central America at the time of the Spanish conquest. The natives' mining tools were made of copper, treated by a process that the Canadian blacksmith claims he has brought to light again. On August 12th, a piece of Allard's prepared copper was tried at the Government rifle ranges. In a shot fired from 40 yards distance the bullet was shivered into fragments. Another bullet, the missile ■triking squarely, was completely flattened. This, it is asserted by experts, will be vastly superior to anything that the best steel could do under like circumstances, and, the matter is to be brought to the immediate attention of the ' British -Admiralty.
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https://paperspast.natlib.govt.nz/newspapers/MH18920920.2.17
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Manawatu Herald, 20 September 1892, Page 3
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137A Long Lost Art Re-discovered. Manawatu Herald, 20 September 1892, Page 3
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