CANCIhIN, FRANZ LUDWIG VON (1738-1796), a German mineralogist and metallurgist, was horn in 1738 at Breitenbach. After acting as professor and holding municipal offices in Ifesse and at Altkenircheo, he atTV. - rot tracted the notice of the Empress Catherine of Russia, who made him director of the salt-mines of Staraja-Russa, councillor of the Imperial College, and, three years before his death, councillor of state. He is the author of a large number of works in German on mineralogy and metallurgy, of which the most important, the Grundziige der Berg- gold Salzwerkskunde, published at Frankfort in 13 vols., during the years 1773-1791, has been translated into several languages. He died in 1796.