2) Les marins évaluent la <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>mont.</abbr> <expan>montagne</expan> </choice> à 15.′ <lb xmlns="http://www.tei-c.org/ns/1.0" />de <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>dist.</abbr> <expan>distance</expan> </choice><supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">,</supplied> ce qui donne avec 3° 10′ (corrigé <lb xmlns="http://www.tei-c.org/ns/1.0" />par <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>dist</abbr> <expan>distance</expan> </choice> et <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>réfr</abbr> <expan>réfraction</expan> </choice>) <measure xmlns="http://www.tei-c.org/ns/1.0" quantity="788" unit="toise">788. <choice> <abbr>t</abbr> <expan>toises</expan> </choice></measure>.