German edition of Erasmus Darwin delayed because Murray has not sent phototypes and galvanographs.
Two of CD’s articles from Nature to appear in April Kosmos ["Sexual colours in butterflies", Collected papers 2: 220–2, Kosmos 7 (1880): 72–4;
"Fertility of hybrids from the Chinese goose", Collected papers 2: 219–20, Kosmos 7 (1880): 77–8].
Moritz Wagner will begin a series criticising natural selection.