NY, Longmans, Green, 1961. A review copy of this biography of von Humboldt, which includes an outline of his magnum opus, Cosmos, and 8 photogravures from his work. Signed by Gendron. She has also added: "Thank you so much for one of my really great moments." Near fine in a good, edgeworn dust jacket that is fragile along all folds with a few chips at extremities. Surprisingly, not listed as a source in Andrea Wulf's award-winning 2015 biography of von Humboldt, The Invention of Nature. [#036858] $375