The collection contains an account written by a Major Gilbert of the 1757 Rochefort expedition during the Seven Years' War. During this conflict, known as the Raid of Rochefort, British amphibious troops attempted unsuccessfully to capture the French port of Rochefort on the Atlantic coast.

Ce fonds comprend divers ordres militaires et d'autres documents et lettres dont les ordres de transfert du commandement au poste de Camouestigia à M. de St-Vincent (1754) et des ordres de faire une reconnaissance au Lac St-Sacrement et "au petit seaut" (1755).

Consists of an English translation of a letter to the Marquis de la Jonquière written by Antoine-Louis Rouillé, comte de Jouy, secretary of state for the French Navy, at Versailles, dated 28 February 1750. The letter discusses an immediate release of prisoners of war taken during conflicts between the French and British colonies. It also includes a mention of Indigenous allies of England and France, and Indigenous people captured during the conflicts: "the Indian Prisoners among the two Nations be likewise released, but after all the French and English Prisoners are released" The letter also includes the name of examiner Josiah Willard, secretary of the province of Massachusetts-Bay.

The collection consists of a manuscript account of the uprising Racconto della sollevazione di Napoli accaduta nell'anno 1647, written in 1740. Beginning in 1503, Naples was ruled by Spain through a viceroy. There was also a seggi or municipal administration which was dominated by the aristocracy, but did have a small popular representation. The uprising of July 1647 was provoked by the high cost of living and by taxes, and had as its figurehead a fisherman named Masaniello. It was in fact organized by Giulio Genoino, a lawyer who wanted the people's voice on the seggi to be equal to the patricians. The rebels attacked prisons and armories, looted the houses of the nobility, and lynched several people. After a few days, a settlement was negotiated by the Cardinal Archbishop

This collection consists of legal documents concerning the settlements of the estates of Sir W. Chester, 1728-1730.

Leoni's manuscript of "Li cinque ordini dell'Architettura civile nelle Misre di Palladio con altri Studi..." was written in Dusseldorf in 1708, and illustrated with Leoni's own drawings. This treatise was never published.

The collection includes three warrants to Richard, Earl of Ranelagh concerning payment of troops, 1694-1697 and a signed document in Dutch concerning a Colonel van de Ruyterye, 1702.

Fonds consists of a late seventeenth-century manuscript containing a critical commentary on Machiavelli's The Price, created for the use of Agostino Cerretari.

Fonds consists of a manuscript of Mémoires de mathématique et de physique contenant un traité des épicycloïdes (published in Paris in 1674) and illustrated with mathematical diagrams.

Fonds consists of manuscript copy of Milledonne's "Giornale del Concilio Tridentino".