On recent instalment of "Insular floras" in Gardeners’ Chronicle [(1867): 50]. Approves of JDH’s abstract of argument for transport of species [i.e., migration, as opposed to continental extension hypothesis].

Suggests that, in some birds, plumage of males is less colourful than that of females; the reason is that the males perform the duties of incubation [see Descent 2: 204 n.].