Due to an increasing separation between researchers who collected data in the field and those who scientifically evaluated the objects and data at home, Humboldt often communicated between travelers and their patrons, pre-published findings on behalf of absent researchers and mediated the exchange, lending and sale of collection objects throughout Europe. In this sense, <ref xmlns="http://www.tei-c.org/ns/1.0" target="https://edition-humboldt.de/themen/forschungsreisen.xql?l=en">the thematic section Scientific Travels</ref> is connected to the history of objects and follows the traces of Humboldt’s work as a mediator – for example in Berlin collections.