Recommends Ernst Dieffenbach for expedition to Guatemala.
Recommends Ernst Dieffenbach for expedition to Guatemala.
Thanks for JG’s book [An introduction to the Trochilidae, or family of humming-birds (1861)], which he has read carefully. Hopes someday to use the information on the close alliance of species in large genera.
CD repudiates hybridity of birds in nature.
Intends to extract the cases of "races" or doubtful species. They show that "determination of species is not a simple affair".
The publishers [of Zoology] have agreed to 50 plates [for Birds]. Asks JG to decide which are most worthy of being done. Also asks him to see whether Bayfield will undertake [to colour] the birds (and quadrupeds) at something under 5d each.
Gives best wishes for Gould’s trip to Australia.
Notes on Synallaxis behaviour.
Asks for the name of a hummingbird.
Feels he cannot keep the gift of Gould’s "magnificent work" or take out a subscription now that he is a married man.