[ Sir James Gray, zoologist. ] Autograph Letter Signed ('James Gray') to the Secretary, Royal Society of Arts, explaining why he cannot chair 'Dr. Cole's "Cantor" Lecture'.

1p., 8vo. In fair condition, lightly-aged, with small pin-hole at top left and Gray's signature underlined in red pencil. He would have 'loved' to chair 'Dr. Cole's "Cantor" Lecture on 22 May, but has to 'attend at [sic] series of meetings in Ireland during the whole of that week'. He has written to Cole on the matter.