To Otto Zacharias   [11 June 1875]1

[Abinger Hall, Surrey.]

Nothing can be more convincing and clear than the conclusions of Malthus, and yet every now and then some foolish author tries to disprove them.2

incomplete

1
The date is established from the printed source (Zacharias 1882, p. 80). The letter was probably CD’s reply to the letter from Otto Zacharias, 3 June 1875.
2
CD refers to Thomas Robert Malthus and probably to Albert Wigand (Zacharias 1882, p. 45). Wigand, a professor of botany at Marburg, had strongly opposed CD’s theory of natural selection (see Wigand 1874–7). In his letter of 3 June 1875, Zacharias wrote that he was sending CD his review of Albert Wigand’s anti-Darwinian book (see letter from Otto Zacharias, 3 June 1875 and n. 7).

Please cite as “DCP-LETT-10013F,” in Ɛpsilon: The Charles Darwin Collection accessed on 5 June 2025, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-10013F