<OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:mets="http://www.loc.gov/METS/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-05-22T05:41:28Z</responseDate><request verb="GetRecord" metadataPrefix="mets" identifier="4066393">https://digisam.ub.uni-giessen.de/ubg-ihd-nl-baer-k/oai/</request><GetRecord><record><header><identifier>oai:digisam.ub.uni-giessen.de/ubg-ihd-nl-baer-k:4066393</identifier><datestamp>2021-11-02T08:23:54Z</datestamp><setSpec>ubg-ihd-nl-baer-k</setSpec><setSpec>handwritten</setSpec></header><metadata><mets:mets xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.loc.gov/METS/ http://www.loc.gov/standards/mets/version112/mets.xsd" OBJID="44">
<mets:metsHdr CREATEDATE="2026-05-22T07:41:28"><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_mdapi2</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="md4066393"><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 Jegór von Sivers an Karl Ernst von Baer, 29.10.1873-10.11.1873 [29 Octbr/10 Nov 73]</mods:title></mods:titleInfo><mods:name type="personal" authority="gnd" valueURI="http://d-nb.info/gnd/117419109" authorityURI="http://d-nb.info/gnd/"><mods:displayForm>Sivers, Jegór von</mods:displayForm><mods:namePart>Sivers, Jegór von</mods:namePart><mods:role><mods:roleTerm type="code" authority="marcrelator">aut</mods:roleTerm><mods:roleTerm>author</mods:roleTerm></mods:role></mods:name><mods:name type="personal" authority="gnd" valueURI="http://d-nb.info/gnd/118505831" authorityURI="http://d-nb.info/gnd/"><mods:displayForm>Baer, Karl Ernst von</mods:displayForm><mods:namePart>Baer, Karl Ernst von</mods:namePart><mods:role><mods:roleTerm type="code" authority="marcrelator">rcp</mods:roleTerm><mods:roleTerm>addressee</mods:roleTerm></mods:role></mods:name><mods:typeOfResource manuscript="yes">text</mods:typeOfResource><mods:originInfo><mods:dateCreated>1873-10-29/1873-11-10</mods:dateCreated><mods:place><mods:placeTerm type="text">Riga</mods:placeTerm></mods:place></mods:originInfo><mods:language><mods:languageTerm authority="iso639-2b" type="code">ger</mods:languageTerm><mods:languageTerm type="text">Deutsch</mods:languageTerm></mods:language><mods:physicalDescription><mods:extent>1 Brief, 2 Blatt (4 beschriebene Seiten), 8°</mods:extent></mods:physicalDescription><mods:abstract type="content">Fragt über die Entwicklung des Hühnchens im Ei, da Baer seit einem halben Jahrhundert die Autorität in diesem Feld sei. Zu Baers Aussage (in seiner Entwicklungsgeschichte, Band 2, S. 43) über den Ursprung des Kalkes. Bittet um Aufklärung der Fortschritte der Embryologie in den letzten 50 Jahren in wenigen Worten mit Quellenangaben für die neuesten Entwicklungen.</mods:abstract><mods:identifier type="uri">http://kalliope-verbund.info/DE-611-HS-480063</mods:identifier><mods:identifier type="urn">urn:nbn:de:hebis:26-digisam-163684</mods:identifier><mods:relatedItem type="series"><mods:titleInfo><mods:title>Nachlass Karl Ernst von Baer - 1. Briefe - 1.19 Band 19</mods:title></mods:titleInfo><mods:identifier type="localparentid">DE-611-BF-74788</mods:identifier><mods:identifier type="uri">http://kalliope-verbund.info/DE-611-BF-74788</mods:identifier></mods:relatedItem><mods:location><mods:shelfLocator>Nachl. Baer, Briefe 19, Bl. [64], 65-66</mods:shelfLocator></mods:location><mods:location><mods:url note="Digitalisat">https://nbn-resolving.de/urn:nbn:de:hebis:26-digisam-163684</mods:url></mods:location><mods:accessCondition type="use and reproduction" xlink:href="https://creativecommons.org/publicdomain/mark/1.0/" displayLabel="Creative Commons Gemeinfrei 1.0 International Lizenz">PDM 1.0</mods:accessCondition><mods:extension><vlz:info xmlns:vlz="http://visuallibrary.net/vlz/1.0/" version="2"/></mods:extension><mods:recordInfo><mods:recordIdentifier source="DE-611">DE-611-HS-480063</mods:recordIdentifier><mods:recordCreationDate encoding="marc">20020812</mods:recordCreationDate><mods:recordChangeDate encoding="iso8601">20210907</mods:recordChangeDate><mods:recordContentSource authority="marcorg">Universitätsbibliothek (Giessen)</mods:recordContentSource><mods:languageOfCataloging><mods:languageTerm authority="iso639-2b">ger</mods:languageTerm><mods:languageTerm type="text">Deutsch</mods:languageTerm></mods:languageOfCataloging><mods:languageOfCataloging><mods:languageTerm authority="iso639-2b">fre</mods:languageTerm><mods:languageTerm type="text">Französisch</mods:languageTerm></mods:languageOfCataloging><mods:languageOfCataloging><mods:languageTerm authority="iso639-2b">rus</mods:languageTerm><mods:languageTerm type="text">Russisch</mods:languageTerm></mods:languageOfCataloging><mods:languageOfCataloging><mods:languageTerm authority="iso639-2b">eng</mods:languageTerm><mods:languageTerm type="text">Englisch</mods:languageTerm></mods:languageOfCataloging></mods:recordInfo></mods:mods></mets:xmlData></mets:mdWrap></mets:dmdSec><mets:amdSec ID="amd4066393"><mets:rightsMD ID="rights4066393">
<mets:mdWrap MIMETYPE="text/xml" MDTYPE="OTHER" OTHERMDTYPE="DVRIGHTS">
<mets:xmlData>
<dv:rights xmlns:dv="http://dfg-viewer.de/">
<dv:ownerLogo>https://digisam.ub.uni-giessen.de/domainimage/logo-UB-giessen.png</dv:ownerLogo><dv:owner>Universit\\\\\\\\\\\\\\\\xe4tsbibliothek Gie\\\\\\\\\\\\\\\\xdfen</dv:owner><dv:ownerSiteURL>https://www.uni-giessen.de/ub/</dv:ownerSiteURL><dv:ownerContact>auskunft@bibsys.uni-giessen.de</dv:ownerContact><dv:license>pdm</dv:license></dv:rights>
</mets:xmlData>
</mets:mdWrap>
</mets:rightsMD><mets:digiprovMD ID="digiprov4066393">
<mets:mdWrap MIMETYPE="text/xml" MDTYPE="OTHER" OTHERMDTYPE="DVLINKS">
<mets:xmlData>
<dv:links xmlns:dv="http://dfg-viewer.de/">
<dv:reference>http://kalliope-verbund.info/de/ead?ead.id=DE-611-HS-480063</dv:reference>
<dv:presentation>https://digisam.ub.uni-giessen.de/id/4066393</dv:presentation>
<dv:iiif>https://digisam.ub.uni-giessen.de/i3f/v20/4066393/manifest</dv:iiif>
<dv:sru>https://digisam.ub.uni-giessen.de/proto_ftsearch/4066393</dv:sru></dv:links>
</mets:xmlData>
</mets:mdWrap>
</mets:digiprovMD></mets:amdSec><mets:fileSec><mets:fileGrp USE="TEASER"><mets:file MIMETYPE="image/jpeg" CREATED="2021-11-02T08:15:28.548900Z" ID="IMG_TEASER_4066394"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/304/4066394" LOCTYPE="URL"/></mets:file></mets:fileGrp><mets:fileGrp USE="DEFAULT"><mets:file MIMETYPE="image/jpeg" ID="IMG_DEFAULT_4066394"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/1000/4066394" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_DEFAULT_4066395"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/1000/4066395" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_DEFAULT_4066396"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/1000/4066396" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_DEFAULT_4066397"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/1000/4066397" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_DEFAULT_4066398"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/1000/4066398" LOCTYPE="URL"/></mets:file></mets:fileGrp><mets:fileGrp USE="THUMBS"><mets:file MIMETYPE="image/jpeg" ID="IMG_THUMBS_4066394"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/128/4066394" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_THUMBS_4066395"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/128/4066395" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_THUMBS_4066396"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/128/4066396" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_THUMBS_4066397"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/128/4066397" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_THUMBS_4066398"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/128/4066398" LOCTYPE="URL"/></mets:file></mets:fileGrp><mets:fileGrp USE="MIN"><mets:file MIMETYPE="image/jpeg" ID="IMG_MIN_4066394"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/504/4066394" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_MIN_4066395"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/504/4066395" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_MIN_4066396"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/504/4066396" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_MIN_4066397"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/504/4066397" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_MIN_4066398"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/504/4066398" LOCTYPE="URL"/></mets:file></mets:fileGrp><mets:fileGrp USE="MAX"><mets:file MIMETYPE="image/jpeg" ID="IMG_MAX_4066394"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/0/4066394" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_MAX_4066395"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/0/4066395" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_MAX_4066396"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/0/4066396" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_MAX_4066397"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/0/4066397" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/jpeg" ID="IMG_MAX_4066398"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/webcache/0/4066398" LOCTYPE="URL"/></mets:file></mets:fileGrp><mets:fileGrp USE="MASTER"><mets:file MIMETYPE="image/tiff" CHECKSUM="447270a3ac155b4399905d4342a1ed3282b1faba" SIZE="14122206" CHECKSUMTYPE="SHA-1" CREATED="2021-11-02T08:15:28.548900Z" ID="IMG_MA_4066394"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/archive/4066394" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/tiff" CHECKSUM="f6ef9df9fa5eeeaf280d3252382b7f68f026e3b5" SIZE="14119436" CHECKSUMTYPE="SHA-1" CREATED="2021-11-02T08:15:28.652900Z" ID="IMG_MA_4066395"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/archive/4066395" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/tiff" CHECKSUM="d47216186c9d8749897760c8e5cf5dc820810478" SIZE="14119436" CHECKSUMTYPE="SHA-1" CREATED="2021-11-02T08:15:28.692900Z" ID="IMG_MA_4066396"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/archive/4066396" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/tiff" CHECKSUM="e7bd4304416517cd5511f75f6fac00d781b22e34" SIZE="14122206" CHECKSUMTYPE="SHA-1" CREATED="2021-11-02T08:15:28.904900Z" ID="IMG_MA_4066397"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/archive/4066397" LOCTYPE="URL"/></mets:file><mets:file MIMETYPE="image/tiff" CHECKSUM="4a40e21497254a8c5fb4785f50fb6f63386babfe" SIZE="14116662" CHECKSUMTYPE="SHA-1" CREATED="2021-11-02T08:15:28.940900Z" ID="IMG_MA_4066398"><mets:FLocat xlink:href="https://digisam.ub.uni-giessen.de/download/archive/4066398" LOCTYPE="URL"/></mets:file></mets:fileGrp></mets:fileSec><mets:structMap TYPE="PHYSICAL"><mets:div TYPE="physSequence" ID="physroot"><mets:div ID="phys4066394" TYPE="page" LABEL="[Seite 1]" ORDER="1"><mets:fptr FILEID="IMG_DEFAULT_4066394"/><mets:fptr FILEID="IMG_THUMBS_4066394"/><mets:fptr FILEID="IMG_MIN_4066394"/><mets:fptr FILEID="IMG_MAX_4066394"/><mets:fptr FILEID="IMG_MA_4066394"/></mets:div><mets:div ID="phys4066395" TYPE="page" LABEL="[Seite 2]" ORDER="2"><mets:fptr FILEID="IMG_DEFAULT_4066395"/><mets:fptr FILEID="IMG_THUMBS_4066395"/><mets:fptr FILEID="IMG_MIN_4066395"/><mets:fptr FILEID="IMG_MAX_4066395"/><mets:fptr FILEID="IMG_MA_4066395"/></mets:div><mets:div ID="phys4066396" TYPE="page" LABEL="[Seite 3]" ORDER="3"><mets:fptr FILEID="IMG_DEFAULT_4066396"/><mets:fptr FILEID="IMG_THUMBS_4066396"/><mets:fptr FILEID="IMG_MIN_4066396"/><mets:fptr FILEID="IMG_MAX_4066396"/><mets:fptr FILEID="IMG_MA_4066396"/></mets:div><mets:div ID="phys4066397" TYPE="page" LABEL="[Seite 4]" ORDER="4"><mets:fptr FILEID="IMG_DEFAULT_4066397"/><mets:fptr FILEID="IMG_THUMBS_4066397"/><mets:fptr FILEID="IMG_MIN_4066397"/><mets:fptr FILEID="IMG_MAX_4066397"/><mets:fptr FILEID="IMG_MA_4066397"/></mets:div><mets:div ID="phys4066398" TYPE="page" LABEL="[Seite 5]" ORDER="5"><mets:fptr FILEID="IMG_DEFAULT_4066398"/><mets:fptr FILEID="IMG_THUMBS_4066398"/><mets:fptr FILEID="IMG_MIN_4066398"/><mets:fptr FILEID="IMG_MAX_4066398"/><mets:fptr FILEID="IMG_MA_4066398"/></mets:div></mets:div></mets:structMap><mets:structMap TYPE="LOGICAL"><mets:div ID="log4066393" DMDID="md4066393" ADMID="amd4066393" TYPE="manuscript" LABEL="Brief von Jegór von Sivers an Karl Ernst von Baer, 29.10.1873-10.11.1873 [29 Octbr/10 Nov 73]" ORDER="1" CONTENTIDS="urn:nbn:de:hebis:26-digisam-163684"><mets:fptr FILEID="IMG_TEASER_4066394"/></mets:div></mets:structMap><mets:structLink><mets:smLink xlink:from="log4066393" xlink:to="physroot"/><mets:smLink xlink:from="log4066393" xlink:to="phys4066394"/><mets:smLink xlink:from="log4066393" xlink:to="phys4066395"/><mets:smLink xlink:from="log4066393" xlink:to="phys4066396"/><mets:smLink xlink:from="log4066393" xlink:to="phys4066397"/><mets:smLink xlink:from="log4066393" xlink:to="phys4066398"/></mets:structLink></mets:mets></metadata></record></GetRecord></OAI-PMH>