<date xmlns="http://www.tei-c.org/ns/1.0" when="1829-09-30" calendar="#julian"> <hi rendition="#uu">18</hi> <choice> <abbr>Sept.</abbr> <expan>Septèmbre</expan> </choice> </date> Villa de <placeName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0009771 https://www.geonames.org/499099">Samara</placeName> <lb xmlns="http://www.tei-c.org/ns/1.0" />(<measure xmlns="http://www.tei-c.org/ns/1.0" quantity="7" unit="pied_de_roi">7 <choice> <abbr>p.</abbr> <expan>pies</expan> </choice></measure> sur le niveau des <lb xmlns="http://www.tei-c.org/ns/1.0" />eaux du <placeName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0007984 https://www.geonames.org/472776">Wolga</placeName>)<supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">,</supplied> 9<hi xmlns="http://www.tei-c.org/ns/1.0" rendition="#sup"><choice> <abbr>h</abbr> <expan>heures</expan> </choice> </hi>½ <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>mat</abbr> <expan>matin</expan> </choice><supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">,</supplied> <lb xmlns="http://www.tei-c.org/ns/1.0" />341,5 <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>th</abbr> <expan>thermomètre</expan> </choice> <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>b.</abbr> <expan>barométrique</expan> </choice> 13°,5 <supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high"><choice> <abbr>C</abbr> <expan>Centigrade</expan> </choice></supplied><supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">,</supplied> air 10°,2 <supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high"><choice> <abbr>R.</abbr> <expan>Réaumur</expan> </choice></supplied>