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Kurz vor seiner Abreise nach Südamerika erwarb HUMBOLDT zur Ergänzung
instruments. HUMBOLDT used this pocket chronometer for his routine astronomic and geomagnetic observations
. HUMBOLDT used this pocket chronometer for his routine astronomic and geomagnetic observations and to fix
”. HUMBOLDT used this pocket
chronometer for his routine astronomic and geo-
magnetic observations and to fi ..."
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