Autograph Letter Signed ('T. H. Huxley') from the biologist and supporter of Charles Darwin's theory of evolution Thomas Henry Huxley, declining to give a lecture.

2pp., 12mo. Bifolium. Very good, on lightly-aged paper. The name of the addressee is indistinct, and appears to be 'S. Algernon'. The letter reads: 'Dear Sir | I regret that I am unable to give the Lecture you ask for. I really have no business to undertake any kind of public speaking & except in very special circumstances, I keep out of it'.