Le <placeName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0005636 https://www.geonames.org/563493">Lac Elton</placeName> (<choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>v.</abbr> <expan>voyez</expan> </choice> <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>posit.</abbr> <expan>position</expan> </choice> <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>astron</abbr> <expan>astronomique</expan> </choice> <lb xmlns="http://www.tei-c.org/ns/1.0" /> <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>p</abbr> <expan>page</expan> </choice> <ref xmlns="http://www.tei-c.org/ns/1.0" target="https://edition-humboldt.de/H0005449/133v">13</ref>) à <measure xmlns="http://www.tei-c.org/ns/1.0" quantity="51" unit="versta">51 <choice> <abbr>W</abbr> <expan>Werst</expan> </choice> </measure> de circonférence, mais <lb xmlns="http://www.tei-c.org/ns/1.0" />rivage (car lac diminue) <measure xmlns="http://www.tei-c.org/ns/1.0" quantity="65" unit="versta">65 <choice> <abbr>W</abbr> <expan>Werst</expan> </choice> </measure>. On <lb xmlns="http://www.tei-c.org/ns/1.0" />croit voir de loin <ref xmlns="http://www.tei-c.org/ns/1.0" xml:id="a838cb77-114a-41cd-b8cb-77114af1cdbc" corresp="#e8ab910a-ace1-4194-ab91-0aace1c1948f" type="editorialNote">un lac couvert <lb />de glace</ref><note xmlns="http://www.tei-c.org/ns/1.0" xml:id="e8ab910a-ace1-4194-ab91-0aace1c1948f" corresp="#a838cb77-114a-41cd-b8cb-77114af1cdbc" type="editorial"><quote>[W]egen des überall [...] krystallisirten Salzes</quote> erschien der See Humboldt und seinen Begleitern in der Morgensonne des <date calendar="#gregorian" when="1829-10-08">8. Oktober 1829</date> <quote>wie eine grosse Eisfläche</quote> (<bibl corresp="https://edition-humboldt.de/BH8W3QPH">Rose 1837/1842</bibl>, <ref target="http://www.deutschestextarchiv.de/rose_ural02_1842/277">II, 259</ref>).</note>. Nous n’avons pas vu le re<lb xmlns="http://www.tei-c.org/ns/1.0" break="no" />flet rouge vers le ciel dont on par<lb xmlns="http://www.tei-c.org/ns/1.0" break="no" />le (Singulier car <ref xmlns="http://www.tei-c.org/ns/1.0" xml:id="c31099ab-f171-4101-9099-abf1717101d9" corresp="#d1ca6759-b091-43fb-8a67-59b09183fb82" type="editorialNote">la couche rose <lb />du sel n’est pas la couche <lb />supérieure</ref><note xmlns="http://www.tei-c.org/ns/1.0" xml:id="d1ca6759-b091-43fb-8a67-59b09183fb82" corresp="#c31099ab-f171-4101-9099-abf1717101d9" type="editorial">Die oberste, aus lockeren groben Salzkörnern bestehende Schicht hatte Roses Bericht zufolge <quote>eine rein weisse Farbe</quote>, während die darunterliegenden Lagen von rötlicher, grauer und schließlich schwarzer Farbe waren (<bibl corresp="https://edition-humboldt.de/BH8W3QPH">Rose 1837/1842</bibl>, <ref target="http://www.deutschestextarchiv.de/rose_ural02_1842/279">II, 261</ref>).</note>)<supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">.</supplied> Le lac n’a aujourd’<lb xmlns="http://www.tei-c.org/ns/1.0" break="no" />hui que <measure xmlns="http://www.tei-c.org/ns/1.0" quantity="5" unit="pouce">5 <choice> <abbr>po</abbr> <expan>pouces</expan> </choice></measure> d’eau, sous cette <lb xmlns="http://www.tei-c.org/ns/1.0" />eau 3 couches de sel blanc, rose <lb xmlns="http://www.tei-c.org/ns/1.0" />et noir, ces trois couches ont <measure xmlns="http://www.tei-c.org/ns/1.0" quantity="7" unit="pouce">7<hi rendition="#sup"> <choice> <abbr>po</abbr> <expan>pouces</expan> </choice></hi></measure>. <lb xmlns="http://www.tei-c.org/ns/1.0" />On pense que la couche d’un <lb xmlns="http://www.tei-c.org/ns/1.0" />été à <measure xmlns="http://www.tei-c.org/ns/1.0" quantity="1" unit="pouce">1<hi rendition="#sup"> <choice> <abbr>po</abbr> <expan>pouce</expan> </choice></hi></measure> d’épaisseur. <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>Temp.</abbr> <expan>Température</expan> </choice> du <lb xmlns="http://www.tei-c.org/ns/1.0" />lac 9°,3 <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>R.</abbr> <expan>Réaumur</expan> </choice><supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">.</supplied> On exploite ces 3 cou<lb xmlns="http://www.tei-c.org/ns/1.0" break="no" />ches <add xmlns="http://www.tei-c.org/ns/1.0" place="left">et lave <lb />le sel <lb />noir qui <lb />n’a de <lb />la boue <lb />qu’entre <lb />les fentes</add><supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">;</supplied> dans beaucoup d’endroits le crou<lb xmlns="http://www.tei-c.org/ns/1.0" break="no" />le blanche supérieur au niveau des <lb xmlns="http://www.tei-c.org/ns/1.0" />eaux (banc de sel sur lequel on peut <lb xmlns="http://www.tei-c.org/ns/1.0" />marcher à sec sans discontinuer <lb xmlns="http://www.tei-c.org/ns/1.0" /> <measure xmlns="http://www.tei-c.org/ns/1.0" quantity="0.5" unit="versta">½ Werst</measure>).