Digitized Images / 19thCentury / Haeckel /

  1. 1870
  2. 1872
  3. 1874
  4. 1877
  5. 1879
  6. 1891
  7. 1892
  8. 1902-v1
  9. 1902-v2
  10. 1906
  11. 1909

All images courtesy History of Science Collections, University of Oklahoma Libraries.

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