What progress has been made with pigeon drawings for Variation?

Can WBT persuade Mr Zurhorst to repeat a pigeon experiment?

WBT’s fowls’ skulls are being engraved; will see pigeon illustration proofs when he can.

Comments on pigeon and poultry woodcuts.

Observations and queries on poultry.

Thanks WBT for help with woodcuts [for Variation].

Has returned WBT’s curious feathers.

Blocks for Variation are much improved. WBT deserves membership in Zoological Society.

Hopes to begin printing Variation at the beginning of next year.

Is tempted to cite Mr Zurhorst’s case.

Hopes to send pigeon and fowl MS [of Variation] to press in a fortnight.

Gives his opinion on the ancestry of domestic ducks, geese, and guinea-fowl.

Thanks for calling his attention to ancestry of guinea-fowl.