He collaborated with
Moritz, Baron von Leonhardi of
Gross Karben in
Hessen, Germany, who also suggested he write his monumental anthropological work
Die Aranda- und Loritja-Stämme in Zentral-Australien (
The Aranda and Loritja Tribes in Central Australia). With Leonhardi as editor, this work became the first publication of the newly founded Städtisches Völkermuseum (Municipal Ethnological Museum) of
Frankfurt am Main, appearing in eight parts between 1907 and 1920. Strehlow sent what was said to be the best collection in the world of
Aboriginal artefacts – both sacred and secular – to Frankfurt, unfortunately largely destroyed in the bombing of the city in
World War Two, though some fine pieces remain. Due to Leonhardi's sudden death in 1910, Strehlow's linguistic researches intended as part of
Die Aranda- und Loritja-Stämme were never published, though used in manuscript form by his son
T. G. H. (Ted) Strehlow and later Hermannsburg missionaries. Strehlow's knowledge of languages and rapport with senior men like Loatjira, Tmala and (for Loritja) Talku enabled him to publish a major tract on the legends, beliefs, customs,
genealogies, secret initiatory life and magical practices of the peoples on the Mission in his book. The book was published in instalments between 1907 and 1920 and came about as the result of correspondence between Strehlow and the German gentleman scholar Moritz von Leonhardi. To clarify certain confusions surrounding this work, it was written by Strehlow, edited by Leonhardi, and published in sections between 1907 and 1920 under the auspices of Frankfurt's newly established
Städtisches Völkermuseum (Municipal Ethnological Museum). Thanks to Leonhardi's contacts with Prof. Bernhard Hagen at the museum, the printing costs were financed by the Anthropological Society of Frankfurt, at that time playing an important role in the cultural life of Frankfurt and supported by wealthy benefactors, some from Frankfurt's prominent Jewish families. In return, the museum obtained a major collection of artefacts and sacred objects at a reduced price, unfortunately largely destroyed in World War Two. These included the usual spears,
boomerangs,
woomeras, digging sticks, stone knives and everyday objects, but also
tjurungas, ceremonial objects and decorations of various kinds which were usually destroyed when the ceremony was finished, kurdaitcha boots, pointing sticks and so on with a view to enabling Europeans to get a full and comprehensive picture of Aranda and Loritja people and their inner world in conjunction with the explanations in the book. After the export of Indigenous material was restricted by the Act of November 1913, a collection intended for Cologne's Rautenstrauch-Joest Museum was impounded at
Port Adelaide, and was purchased by the
South Australian Museum. Strehlow's genealogical records of long-dead Aranda men and women dating back to around the beginning of the nineteenth century are possibly the most exhaustive for anywhere in Australia and of priceless value to their descendants today; unfortunately, they were heavily cut when published, but the originals survive in the
Strehlow Research Centre in
Alice Springs. Strehlow's book challenged some of the findings of
Walter Baldwin Spencer and
Francis James Gillen in their highly acclaimed work
The Native Tribes of Central Australia, at that time accepted as the last word on the Aranda. This led to a major controversy in London anthropological circles involving
Andrew Lang, Sir
James Frazer,
Robert Ranulph Marett,
A.C. Haddon, Spencer and later
Bronisław Malinowski. Central to the debate was the question of whether Aboriginal people were primitive people on a lower level to Europeans (Frazer and Spencer's view) or a decadent people who had previously been on a higher level of culture (Strehlow's view, based on his knowledge of the language). Strehlow's researches were taken up by Andrew Lang and N.W. Thomas in England, by
Émile Durkheim,
Marcel Mauss and
Arnold van Gennep in France, by
Fritz Graebner in Germany and Pater W. Schmidt in Austria, and were a major source for Bronislaw Malinowski's
The Family among Australian Aborigines. A translation of
Die Aranda- und Loritja-Stämme into English was completed in 1991 by Rev. Hans D. Oberscheidt and is still awaiting publication. Strehlow wrote an account of the 1875 "
massacre of Running Waters", in which 80 to 100 Arrernte men, women and children of the
Southern Aranda language group were killed by a raiding party of 50 to 60
Matuntara warriors at Irbmangkara, a permanent water stretch of the
Finke River. ==Natural history collections==