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Georg Balthasar Neumayer

Professor Georg Balthasar Neumayer (1826 - 1909), deutscher Geophysiker und Polarforscher. German geophysicist and polar explorer. man, scholar, portrait, fashion, scientist, volcanicity, volcanism, geology, history, historical, 1910s, 1920s, 20th century, archive, Carl Simon, hand-coloured glass slide

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