Ernst Haeckel
1834 to 1919 · 19th Century · Biology
German zoologist (1834-1919)
Works by Ernst Haeckel
- The Riddle of the Universe at the Close of the Nineteenth Century · 1899 · translated by Joseph McCabe · 49 sections
1834 to 1919 · 19th Century · Biology
German zoologist (1834-1919)