Austrian physician and medical writer; born in Lettowitz, Moravia, Austria, May 1, 1849. He was educated at the gymnasium at Brünn and at the University of Vienna. After graduating as M. D. in 1873, he established himself in Vienna, where he was appointed a member of the board of health. In 1883 he became privat-docent of medicine (Innere Medicin) at the university in that city. Biach has occupied the position of secretary to the society of physicians of Lower Austria.
In addition to his work on "Die Neueren Antipyretica," Vienna, 1889, he is the author of many essays, of which the following may be mentioned: "Ueber Aneurysmen an den Herzklappen," in "Jahrbücher der Gesellschaft der Aerzte in Wien," 1878; "Ueber Jaborandi und Seine Alkaloide," in "Mittheilungen des Vereins der Aerzte in Niederösterreich," 1879; "Versuche über die Physiologische Wirkung des Chinolins," in Virchow's "Archiv für Pathologische Anatomie und Physiologie und für Klinische Medizin," 1881; "Cirrhosis Hepatis mit Wandständiger Thrombose der Vena Portæ und Vena Meseraica Superior," in "Mittheilungen des Vereins der Aerzte in Niederösterreich," 1884; "Entwicklung von Krebs des Magens auf der Basis eines Runden Magengeschwürs," in "Wiener Medizinische Presse," 1890.