Lyon Playfair, chemist and parliamentarian: papers relating to Thank-you note to the Secretary of the Admiralty from the office of Dr Lyon Playfair (unknown sender) 17th April 1856; Entrance voucher for the House of Commons for Lyon Playfair, 8th February; Note to unknown recipient from Playfair (signed) making reference to an unknown bill (undated); Letter to unknown recipient from his son, the 2nd baron Playfair, concerning information on his father's election as MP for the Universities of Edinburgh and St Andrews, dated 29 November 1927. 1856, 1927