Büchner, Friedrich Karl Christian Ludwig (1824–1899)

German physician and philosopher. Büchner was born in Darmstadt, Germany. He studied at Giessen, Strasbourg, Würzburg, and Vienna. In 1852 he became a lecturer at Tübingen, Germany, but the controversy raised by his Kraft und Stoff/Strength and Matter (1855), compelled him to resign and take up a private practice in Darmstadt. His later works include the two-volume Aus Natur und Wissenschaft/From Nature and Science (1862–84) and Die Darwinsche Theorie/Darwin's Theory (1890, 5th ed.). A selection of his essays together with a memoir by his brother was published posthumously as Im Dienste der Wahrheit/In the Service of Truth in 1899.