Miscellaneous scientific notes of Isidore Geoffroy St-Hilaire, 1783-1861, mainly relating to taxonomy and hybridisation. With some fragmentary corrected proofs of published works and other printed matter.

Manuscript catalogue of a collection of small specimens of minerals, classed and arranged according to R Kirwan (by him, or following his principles).

Drawings and watercolour paintings of fossil fish by Joseph Dinkel, J C Weber, Cécilie Agassiz, Jacques Bourkhardt, G A H Köppel and Sixtus Heinrich Jarwart and others, commissioned by Jean Louis Rudolphe Agassiz for his publications 'Recherches sur les Poissons Fossiles' (1833-1844) and the follow up 'Monographie des Poissons Fossiles du Vieux Grès Rouge' (1844-1845). Also includes drawings commissioned by Lord William Willoughby Cole (1807-1886), later the Earl of Enniskillen, and Sir Philip de Malpas Egerton (1806-1881) of their own fossil cabinets.