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Karl Frank

1875 – 1950

  • The theory of evolution in the light of factsThe theory of evolution in the light of facts
  • The theory of evolution in the light of factsThe theory of evolution in the light of facts
  • Die Entwicklungstheorie im Lichte der TatsachenDie Entwicklungstheorie im Lichte der Tatsachen
  • Philosophia naturalis ..Philosophia naturalis ..
  • Philosophia naturalis in usum scholarumPhilosophia naturalis in usum scholarum