classifications
| search classifications for: Humboldt, (Friedrich Wilhelm Heinrich) Alexander, Freiherr (Baron) von |
Natural history personalities, biologists, naturalists, evolutionists, museum directors, geneticists, embryologists, microscopists, cytologists, taxonomists, photographers, natural history TV presenters (excludes those working only on humans)
Geographers, topographers, surveyors
Germany
Oceanographers, hydrographers, marine explorers / geologists / biologists
Barons, baronesses
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