Will they pay at the Royal Institution for copying on a large size drawings of these birds?
I could lend skulls of a Carrier and a Tumbler (to show the great difference) for the same purpose, but it would not probably be worth while.
I have been looking at my MS.

What you want I believe is about hybridism and breeding.

The chapter on hybridism is in a pretty good state--about 150 folio pages with notes and references on the back.

My first chapter on breeding is in too bad and imperfect a state to send; but my discussion on pigeons (in about 100 folio pages) is in a pretty good state.

I am perfectly convinced that you would never have patience to read such volumes of MS.