[ John Pringle Nichol, Regius Professor of Astronomy at the University of Glasgow. ] Autograph Signature ('J. P. Nichol') on part of letter to Sir David Brooks.

On 3.5 x 9.5 cm piece of paper cut from letter. In good condition, with gum from mount on blank reverse. Reads: '[...] your list? - Believe me | Ever & respectfully yours | J. P. Nichol | Sir David Brooks'.