<oai_dc:dc xmlns:dpla="http://dp.la/about/map/" xmlns:cnt="http://www.w3.org/2011/content#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dcmitype="http://purl.org/dc/dcmitype/" xmlns:edm="http://www.europeana.eu/schemas/edm/" xmlns:gn="http://www.geonames.org/ontology#" xmlns:oa="http://www.w3.org/ns/oa#" xmlns:ore="http://www.openarchives.org/ore/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:svcs="http://rdfs.org/sioc/services" xmlns:wgs84="http://www.w3.org/2003/01/geo/wgs84_pos#" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/">
  <dc:identifier>https://digital.sciencehistory.org/works/4c98szk</dc:identifier>
  <dc:title>First Day Cover commemorating Percy Lavon Julian</dc:title>
  <dc:rights>http://rightsstatements.org/vocab/InC-RUU/1.0/</dc:rights>
  <dc:creator>United States Postal Service</dc:creator>
  <dc:creator>Postal Commemorative Society (U.S.)</dc:creator>
  <dc:date>1993-Jan-29</dc:date>
  <dc:description>Colorano "Silk" Cachet First Day of Issue cover commemorating African-American chemist Percy Lavon Julian (1899-1975), who first synthesized the drug physostigmine. Julian ingeniously figured out how to synthesize important medicinal compounds from abundant plant sources, making them more affordable to mass-produce.

</dc:description>
  <dcterms:isPartOf>Percy Lavon Julian commemorative stamp and postal covers collection</dcterms:isPartOf>
  <dcterms:extent>16.5 cm W x 9 cm H</dcterms:extent>
  <dcterms:spatial>United States</dcterms:spatial>
  <dc:language>English</dc:language>
  <dc:subject>Julian, Percy Lavon, 1899-1975</dc:subject>
  <dc:subject>Commemorative postage stamps</dc:subject>
  <dc:subject>Chemists</dc:subject>
  <dc:subject>African American chemists</dc:subject>
  <dc:subject>First day covers (Philately)</dc:subject>
  <dc:type>image</dc:type>
  <dc:type>text</dc:type>
  <dc:type>postage stamps</dc:type>
  <edm:preview>https://digital.sciencehistory.org/downloads/deriv/xpdccc6/thumb_large_2X?disposition=inline</edm:preview>
  <dpla:originalRecord>https://digital.sciencehistory.org/works/4c98szk</dpla:originalRecord>
  <edm:rights>http://rightsstatements.org/vocab/InC-RUU/1.0/</edm:rights>
  <edm:hasType>postage stamps</edm:hasType>
  <edm:object>https://digital.sciencehistory.org/downloads/deriv/xpdccc6/download_full?disposition=inline</edm:object>
</oai_dc:dc>