KAPP, Friedrich, a German author, born in Hamm, Westphalia, April 13, 1824. He studied law, and in consequence of the revolution of 1848 went in 1850 to New York, where he practised his profession, attached himself to the republican party, became a presidential elector in 1860, and subsequently was commissioner of emigration. He returned to Germany in 1870, and was elected in 1872 to the German Reichstag. He has published Die Sklavenfrage in den Vereinigten Staaten (Göttingen, 1854); Leben des amerikanischen Generals F. W. von Steuben (Berlin, 1858; English ed., New York, 1859); Geschichte der Sklaverei in den Vereinigten Staaten (Hamburg, 1860); Leben des amerikanischen Generals Johann Kalb (Stuttgart, 1862; English ed., New York, 1870); Der Soldatenhandel deutscher Fürsten nach Amerika (Berlin, 1864; 2d revised and enlarged ed., 1874); Geschichte der deutschen Auswanderung in Amerika, (vol. i., Leipsic, 1868); and Friedrich der Grosse und die Vereinigten Staaten von Amerika (1871).