Thanks AJWW for his frank and generous criticism. [See 9352.] Having viewed all natural objects under the light of natural selection for more than thirty years, CD thinks it unlikely that any arguments short of demonstration can convince him of error.

Confirms receipt of a book that had been lost by the Post Office (Vol. 1 Der Darwinismus und die Naturforschung Newtons und Cuviers (Darwinism and the natural researches of Newton and Cuvier; Wigand 1874–7).