The contents are as follows: 'Scheme of ... the Duke of Douglas his real and personal Estate, containing also an accompt of the family debts paid ... and of money laid out on purchases or lent out on bonds', 1755 (folio 3); "Rental of ... his Grace's whole estates in the shires of Lanerk and Renfrew for the cropt and year 1757 &c. and of the lands ... in the shire of Air for cropt 1758 &c." (folio 11); with some notes by Dr Struthers.