<measure xmlns="http://www.tei-c.org/ns/1.0" quantity="2" unit="pied_de_roi">2 <choice> <abbr>F</abbr> <expan>Fuß</expan> </choice></measure> (<placeName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0006725 https://www.geonames.org/1524297">Irtisch</placeName>wasser <measure xmlns="http://www.tei-c.org/ns/1.0" quantity="15.2" unit="reaumur">15°,2 <choice> <abbr>R</abbr> <expan>Réaumur</expan> </choice> </measure> air <measure xmlns="http://www.tei-c.org/ns/1.0" quantity="17.8" unit="reaumur">17°,8 <supplied cert="high">Réaumur)</supplied> </measure>.