PRAXIS Und Theorie Der Leder-Erzeugung. Ein Leitfaden Für Lohe-, Weiss-, Sämisch- Und Glaçé-Gerber
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Durch Jahrtausende ist die Gerberei ein empirisches Gewerbe gewesen. Erst als die grossen Kriege der ersten französischen Republik so kolossale Ledermeugen erheischten, wie sie die Werkstätten der einheimischen Gerbermeister nicht zu liefern vermochten, war man genöthigt, zu Wissenschaften und Künsten Zuflucht zu nehmen, um die bisher so überaus lange Gerbedauer zu verkürzen. Dieser Schritt war thatsächlich mit Erfolg gekrönt, aber die grössten Männer der Wissenschaft waren ganz erstaunt, eine wichtige und hoch ent- wickelte Industrie zu sehen, welche von ihrer Forschung bisher fast gänzlich unbeachtet geblieben war. Aber auch nachdem das wissen- schaftliche Interesse an der Herstellung von Leder geweckt war, sah man nur zu bald ein, dass die bisherigen Hilfsmittel nicht aus- reichten, um die kolossalen Mengen von empirischem Wissen, welche in diesem uralten Gewerbe angehäuft waren, auf Grund der bekannten Lehren zu sichten. Vergeblich versuchten die grossen Chemiker BER- ZELIUS und DUMAS sogar nur eine richtige Definition des Leders zu geben. Dennoch bemühte sich eine Anzahl von wissenschaftlich hoch- gebildeten Forschern, in erster Reihe der bedeutende Chemiker SIEG- MUND FR. HERMBSTÄDT, Professor an der Berliner Universität, Licht in das bisherige Dunkel zu bringen. Aber erst nachdem in der zweiten Hälfte des XIX. Jahrhunderts die Naturwissenschaften zu einer hohen Stufe der Entwicklung empor- gestiegen waren, konnte man mit Erfolg an die Lösung der verschie- denen Aufgaben herantreten. In der Reihe der sich mit der Leder- industrie befassenden Forscher ist Prof. Dr. F. L.
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