http://observamus.com.br/index.php/arauaques/
Max Schmidt (1874-1950) dedicated his life to study the South American indigenous peoples. Despite his great contribution to the study of the cultures and history of these peoples, his work is still little known in Brazil. He is the author of the classic Os Aruaques, originally published in 1917, a book that to this day occupies the place of one of the most original and important studies of South American ethnology.
Written at the beginning of the last century, during the period of the First World War, Os Arauaques was originally produced as Schmidt's doctoral thesis and the ideas presented there mark the knowledge about these and other peoples since then.
Schmidt carried out three expeditions in Central Brazil and Paraguay (1900, 1910, 1926-28) and is considered one of the most important characters in the German tradition in Americanist ethnology in the 20th century. He emigrated from Germany in 1929, first to Brazil and then to Paraguay, where he died near Asuncion in 1950.