the study of skeletons relating to modern humans and developed a technique that analyzes the fluorine in bones to calculate their age. In 1895 he used newly discovered X-rays to analyze inner bone structure. Results of his research related to the finds at Krapina could be found in the monograph "O diluvijalnom čovjeku iz Krapine", (Der Diluviale Mensch von Krapina in German; "On the diluvial man of Krapina"), which was published in Wiesbaden in 1906. The publication was the most comprehensive work ever written in the area of the paleontology of man. Works In 1909, he founded the Geological Commission for Croatia and Slavonia, with the goal of carrying out geological mapping and research in pedology. The Croatian geological service became independent from the Geological Institute in Budapest and eventually became the present-day Hrvatski geološki institut (Croatian Geological Survey) in Zagreb. Gorjanović-Kramberger published more than 230 papers in Croatian and international journals during his career. He made a couple of geological maps. He was an honorary doctor of the University of Zagreb, a member of the Association of Medical Doctors and Croatian Natural Sciences Association, and an honorary citizen of Zagreb, Karlovac, and Krapina. Gorjanović-Kramberger was a member of nine foreign scientific associations. From 1891, he was an associate member and from 1909 a full member of the then Yugoslav Academy of Sciences and Arts. Gorjanović-Kramberger remained active after his retirement. Between 1899 and 1929, he published 53 works related to discoveries at the Krapina site. See also List of fossil sites (with link directory) List of hominina (hominid) fossils (with images) Notes External links "Dragutin Gorjanović-Kramberger." In Biographical Dictionary of the History of Paleoanthropology. Edited by Matthew R. Goodrum. (2016) available at https://drive.google.com/file/d/12tWs2rELSqYExeDZ2zbfv_LsyczrLxBf/view Krapina Early Man Krapina Cave Archaeology 1856 births 1936 deaths Croatian paleontologists Croatian archaeologists Members of the Croatian Academy of Sciences and Arts Croatian people of German descent University of Zagreb alumni Academic staff of the University of Zagreb University of Tübingen alumni Scientists from Zagreb Burials at Mirogoj Cemetery 19th-century Croatian people 20th-century Croatian people