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Triumphs and wonders of the 19th century, a volume of original, historic and descriptive writings showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress (1901)

Boyd, James Penny, 1836-1910 · Philadelphia, A. J. Holman & co · leaf 211

An illustration from Triumphs and wonders of the 19th century, a volume of original, historic and descriptive writings showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress, 1901, leaf 211
than electric current that he isolated (1807) the metals sodium and potassium,and described their properties. This achievement of Sir Humphry Davys was the second great step inthe progress of chemistry, after the one taken by Lavoisier. By means ofthe metals sodium and potassium other metallic…

Progress · Inventions

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