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Keywords from Image Description:
IRGO founders . en The founding members of the Russian Geographical Society Vladimir Odoyevsky Alexey Levshin Konstantin Arseniev Vladimir Dal Platon Chikhachov Mikhail Vronchenko Friedrich Fyodor von Berg Pyotr SemyonovTyanShansky Istoriya poluvekovoy deyatel'nosti Imperatorskogo Russkogo geograficheskogo obshchestva Spb Vol