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<mets:metsHdr CREATEDATE="2026-05-21T03:41:36"><mets:agent ROLE="OTHER" TYPE="OTHER" OTHERTYPE="SOFTWARE"><mets:name>vls/2603</mets:name></mets:agent><mets:agent ROLE="OTHER" TYPE="OTHER" OTHERTYPE="INSTANCE"><mets:name>ubg-balancer_mdapi1</mets:name></mets:agent><mets:agent ROLE="OTHER" TYPE="OTHER" OTHERTYPE="REPOSITORY"><mets:name>digisam.ub.uni-giessen.de</mets:name></mets:agent><mets:agent ROLE="OTHER" TYPE="OTHER" OTHERTYPE="BUILDER"><mets:name>vd</mets:name></mets:agent></mets:metsHdr><mets:dmdSec ID="md4055190"><mets:mdWrap MIMETYPE="text/xml" MDTYPE="MODS"><mets:xmlData><mods:mods xsi:schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-8.xsd" version="3.8"><mods:titleInfo><mods:title>Brief von Rudolf Leuckart an Karl Ernst von Baer, 26.04.1866 [26. 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Entschuldigt sein Schweigen und beklagt, dass heute mehr die Kaufleute als die Gelehrten korrespondieren. Er sende diesmal nicht nur eigene Arbeiten, sondern auch eine vom Kollegen Buff zur Trichinenfrage. Zu Baers Theorie der Bildung der Flussufer. Fragt, ob es gelingen wird, die Prägeanstalten der Natur je zu entschlüsseln. Zum Hypothesenhafen des Darwinismus, zu dem er bekehrt sei. Diskutiert die Artfrage. Bittet um Baers öffentliches Urteil dazu. Hofft, dass Baer seine deutschen Schüler und Verehrer besucht. Neben Wagner habe Baer am meisten auf ihn eingewirkt. Die russische Regierung habe ihm einen Orden erteilt und eine Empfangsbestätigung gefordert. 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