<choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>Navigat.</abbr> <expan>Navigation</expan> </choice> sur le <placeName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0007984 https://www.geonames.org/472776">Wolga</placeName> à <placeName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0017567 https://www.geonames.org/12129112">Bolgari</placeName> <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr><lb type="preserve" />Temp.</abbr> <expan>Température</expan> </choice> de l’eau à <placeName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0019805 https://www.geonames.org/474795">Werchi Uslon</placeName> <measure xmlns="http://www.tei-c.org/ns/1.0" quantity="13.9" unit="reaumur">13°,9 <choice> <abbr>R.</abbr> <expan>Réaumur</expan> </choice></measure><supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">,</supplied> air <measure xmlns="http://www.tei-c.org/ns/1.0" quantity="18" unit="reaumur">18° <choice> <abbr>R.</abbr> <expan>Réaumur</expan> </choice></measure> (6<hi xmlns="http://www.tei-c.org/ns/1.0" rendition="#sup"><choice> <abbr>h</abbr> <expan>heures</expan> </choice></hi> soir<supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">)</supplied>.