Althorp Papers. Vol. dlii. Parchment roll certifying the amounts of money received and expended by the 2nd Earl Spencer for ‘secret services’; Dec. 1794 and Feb. 1801.
Althorp Papers. Vol. dlxxxviii. Pamphlets with covering letters relating to various schemes and projects, inoculation against smallpox, the raising of sunken ships and tactics for warfare; Feb. 1806-Feb. 1807.