Note 52 — Chapter XVII · ON THE GOOD EFFECTS OF CROSSING, AND ON THE EVIL EFFECTS OF CLOSE INTERBREEDING.
Reading edition
‘Annal. des Sc. Nat.,’ 3rd series, Bot., tom. vi. p. 189.
Reading edition
‘Annal. des Sc. Nat.,’ 3rd series, Bot., tom. vi. p. 189.