What happened was that Aveling's mistress was Marx's daughter, and when both Darwin and Marx were dead, Marx's papers became muddled up with Aveling's papers, and a letter from Darwin saying, "My dear sir, thank you very much but I don't want you to dedicate your book to me,"
Het gebeurde zo: Aveling's maîtresse was de dochter van Marx, en toen Darwin en Marx dood waren, raakten de papieren van Marx en Aveling door elkaar, en een brief van Darwin waarin stond, "Beste heer, dank u zeer, maar ik wil niet dat u uw boek aan mij wijdt?"