<date xmlns="http://www.tei-c.org/ns/1.0" when="1829-10-11" calendar="#gregorian">11 <choice> <abbr>Oct</abbr> <expan>Octobre</expan> </choice> </date> Dimanche<supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">,</supplied> air 8° <supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high"><choice> <abbr>R.</abbr> <expan>Réaumur</expan> </choice></supplied> (5 pies sur <placeName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0007984 https://www.geonames.org/472776">Wolga</placeName>)