Ludwig von Graff

Ludwig Bartholomew de Graff Pancsova ( born January 2, 1851 in Pancsova; † February 6, 1924 in Graz) was a Hungarian- Austrian zoologist. He was rector at the Karl- Franzens University in Graz and an expert in the study of flatworms.

Life

Ludwig von Graff was born on January 2, 1851 in Pancsova in Belgrade, the eldest son of a pharmacist, banker, landowner and mayor Wilhelm Hermann de Graff Pancsova and Elisabeth de Zoldy Zold. From 1868, he studied medicine at the University of Vienna, where he took in 1871, the Tirocinalprüfung off so he could take over if necessary later on his father's pharmacy.

From 1871 to 1873 Graff studied in Graz from 1871 to 1873 with Oskar Schmidt zoology. In the summer of 1872 Professor Schmidt was appointed to Strasbourg, Graff followed him in 1873 as an assistant at the Zoological Institute. Due to a treatise on Turbellaria, titled "On the minute anatomy of the Rhabdocoelen " acquired Graff 1873 in Strasbourg doctoral degrees in philosophy. , He became an assistant to the physician, and zoologist Carl von Siebold in Munich. Here, Graff developed an expert in the field of Turbellaria ( flatworms, today more than 16,000 known species comprehensively ). , where he habilitated in 1874 with the work " to knowledge of the Turbellaria ."

1876 ​​Graff was appointed professor at the Royal Bavarian forest institute Aschaffenburg, where he taught until 1884 Forest Zoology. Graff was followed in 1884 to teach at the Karl- Franzens University in Graz as Professor of Zoology, where he worked until 1920 as a professor. It was he, who extended the Institute of Zoology and its library. To expand the knowledge about the thousands of unknown Turbellarienarten, he undertook in the Graz time numerous study trips: 1893/94 to Ceylon and Java. This was followed in 1902 Norway ( Arctic Ocean ) and 1907 North America. 1888/89 Graff was dean of the Faculty of Arts Graz and 1896/97 President of the University.

Graff was a member of many learned societies. He was a corresponding member of the Prussian Academy of Sciences in Berlin, together with colleagues proposed the creation of the German Zoological Society and founded Viktor von Ebner- Rofenstein and others, 1907, the Society of morphology and physiology. The VIII International Congress of Zoologists in Graz in 1910 elected him an honorary president. He was made an honorary Doctor of Scottish University of St Andrews and the British University of Cambridge.

On August 5, 1874 Graff married in Lundenburg the industrialists daughter Eugénie Caroline Pauline Emilie (Jenny ) Schorisch. The couple had two daughters and two sons, including the later gynecologists and radiologists Erwin von Graff. Ludwig von Graff died at the age of 73 years on February 6, 1924 after a long illness in mental derangement in Graz.

Works

The results of his research trips held Graff in his works firmly, eg in the two-volume " Monograph of the Turbellaria " (Vienna 1882, 1889). Then began, in addition to numerous articles in professional journals, the works: " The turbellarians as parasites and hosts " (Graz 1903) and " The parasitism in the animal kingdom and its importance for speciation " (Graz 1907). Between 1859 and 1862, the Heidelberg professor Heinrich Georg Bronn were three volumes of " classes and orders of the animal kingdom ' out. The fourth volume ( " Turbellaria " ) was written by Graff 1904-1908 or 1912-1917 and published. This work has remained one until the present continued reference.

• The organization of the Turbellaria Acoela. W. Engelmann, Leipzig 1891 doi: 10.5962/bhl.title.10181 doi: 10.5962/bhl.title.46844
• The Turbellaria as parasites and hosts. Leuschner & Lubensky, Graz 1903 doi: 10.5962/bhl.title.10091
• Turbellaria. Winter, Leipzig 1904 doi: 10.5962/bhl.title.39536 doi: 10.5962/bhl.title.1093
• Parasitism in the animal kingdom and its importance for speciation. Quelle & Meyer, Leipzig 1907 doi: 10.5962/bhl.title.1851