The American Cyclopædia (1879)/Knapp, Ludwig Friedrich

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KNAPP, Ludwig Friedrich, a German chemist, born at Michelstadt, Hesse-Darmstadt, Feb. 22, 1814. He studied under Liebig, graduated at Giessen as a chemist, and at the mint in Paris as an assayer. He was professor at Giessen from 1841 till the close of 1853, and subsequently in the economical institution of Munich. In 1856 he became inspector of the royal porcelain works, and in 1863 he went to Brunswick to teach chemistry at the polytechnic school. He has published Lehrbuch der chemischen Technologie (2 vols., Brunswick, 1847; translated into English by Ronalds and Richardson, 3 vols., London, 1848-'51, and by W. R. Johnson, 2 vols., Philadelphia, 1848-'9), and translated Percy's “Metallurgy” (1862). He has made some remarkable investigations relative to tanning.