The chemical knowledge of Egyptian metallurgists and jewellers, he holds, was early transmitted to the artisans of Rome, and was preserved throughout the dark ages in the workshops of Italy and France until about the 13th century, when it was mingled with the theories of the Greek alchemists which reached the West by way of the Arabs. [Please select]
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"Chemists and metallurgists, have endeavoured to determine the degree of fusibility of the earths when mixed with each other; but their researches have shed but little light upon the management of blast furnaces." [Please select]
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