LÖWENTHAL, NATHAN:
By: Isidore Singer
Russian histologist; born in 1856; educated at the Academy for Physicians and Surgeons at St. Petersburg and at the universities of Kiev and Geneva. From 1881 to 1884 he was assistant to Schiff at Geneva, but he went to Lausanne in the latter year as assistant professor of histology, becoming professor in 1890.
Löwenthal is the author of the following monographs: "Ueber den Unterschied der Secundären Degeneration des Seitenstranges nach Hirn- und Rückenmarksverletzungen," in Pflüger's "Archiv für Physiologie," 1883; "Contribution Expérimentale à l'Etude des Atrophies Secondaires du Cordon Postérieur et de la Colonne de Clarke," in "Recueil Zoologique Suisse," 1885-86; (in collaboration with Herzen) "Trois Cas de Lésion Médullaire," etc., in "Archives de Physiologie Normale et Pathologique," 1886; "Experimentalisch-Anatomischer Beitrag zur Kenntniss der Bahnen im Rückenmark und Gehirn"; "Notiz über die Protoplasmastructur der Kornzellen des Eierstockes," and "Zur Kenntniss des Keimfleckes im Ureie Einiger Säuger," in "Anatomischer Anzeiger," 1887-95; "Die Spermatogenese bei Oxyuris Ambigua," "Die Befruchtung, Reifung, und Teilung des Eies von Oxyuris Ambigua," and "Die Harder'sche Drüse," all in "Internationale Monatsschrift für Anatomie," 1889-96; "Zur Frage über die Anwendung von Terpentinöl in der Histologischen Technik," in "Centralblatt für Physiologie," 1889; "Technisch-Histologische Notiz" and "Ueber eine Neue Alkoholische Carminlösung," in "Zeitschrift für Wissenschaftliche Mikroskopie," 1893-1902; "Contribution à l'Etude du Lobe Olfactif des Reptiles," in "Journal de l'Anatomie et de la Physiologie," 1894; "Drüsenstudien" and "Beitrag zur Kenntniss der Struktur und der Teilung von Bindegewebszellen," in "Archiv für Mikroskopische Anatomie," 1900-3; "Beitrag zur Kenntniss der Bezichungen der Taenia Semicircularis," in "Morphologisches Jahrbuch," 1902. He has written also two books: "Questions d'Histologie: La Cellule et les Tissus," Paris, 1901; and "Atlas zur Vergleicheden Histologie der Wirbeltiere," Berlin, 1904.
