Humboldt on Botany, Academy of Natural Sciences
This drawing of a Melastoma Recemosa is a part of a online exibit of the Academy of Natural Sciences in
Read MoreThis drawing of a Melastoma Recemosa is a part of a online exibit of the Academy of Natural Sciences in
Read MoreThe year 2004 marks the bicentennial of Alexander von Humboldt’s first and only visit to Philadelphia and to the United
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