EditorialAlexander von Humboldt, German explorer, naturalist and botanist, 1769-1859. After the portrait painting by Friedrich George Weitsch. Steel engraving by Lizars from Sir William Jardine's The Naturalist's Library, W.H. Lizars, Edinburgh, 1843.
EditorialPortrait of Nikolai M. Kamensky (1776-1811). Rusian commander. By the German painter Friedrich Georg Weitsch (1758-1828), 1807-1810. Oil on canvas. The State Hermitage Museum. Saint Petersburg. Russia.