Austrian physician; born at Vienna Aug. 5, 1846; died there Oct. 22, 1891. He received his education at the universities of Leipsic and Vienna, graduating from the latter as doctor of medicine in 1870. In the following year he became prosector at the anatomical institute of Vienna University under Rokitansky, and in 1873 privat-docent and assistant to the chair of physiology. In 1880 he was appointed assistant professor, and in 1887 was elected a correspondingmember of the Imperial Academy of Sciences in Vienna.

Fleischl invented several physiological instruments, among which are the "Kapillarelektrometer" and the "Hämometer." He contributed many essays to the medical journals, and was also the author of the following works:

"Ueber den Bau der Sogenannten Schilddrüse, des Frosches," in "Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften," 1868; "Eine Lücke in Kant's Philosophie," Vienna, 1872; "Untersuchung über die Gesetze der Nervenerregung," seven essays, in "Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften," ib. 1875-80; "Die Doppelte Brechung des Lichtes in Flüssigkeiten," ib. 1884; "Die Deformation der Lichtwellenfläche im Magnetischen Felde," ib. 1885. He also translated C. Maxwell's "Matter and Motion," Vienna, 1887. His "Gesammte Abhandlungen" were edited by Exner, Vienna, 1893.

A mural portrait of Fleischl was placed in the arcade of the University of Vienna in 1898.

  • Pagel, Biog. Lex. s.v., Vienna, 1901.
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