Inside cover of Album 1 contains a printed catalogue description reading: "Drawings of European Birds, a Collection of upwards of 200 Drawings, most beautifully executed colours, of European Birds, taken from Nature, and most faithfully copied with a view to be published; but from the death of the artists M. la Grese, and M. Petit, they never were engraved. Most of them are accompanied with their names, in 4 large vols. oblong folios, formerly in the Duke of Devonshire's Collection"