A commonplace book of Lewis Morris containing note and extracts relating mainly to natural history, mineralogy, physics, and applied mechanics, together with recipies and poems.

A commonplace book of Robert Edwards, Tai Draw, near Bala. It contains notes on astrology, witchcraft, legerdemain, geography, natural history, Biblical history, medicinal and household recipes, arithmetical and other tables, algebraical problems, poems, and a copy of a Welsh letter written in 1722-3, by a man born and bred in America to his kindred in the Bala district.

A botanical record and natural history journal kept by William Pamplin during the years 1866-1894, with notes on his garden, his fruit-trees and his bees.

A letter, 17 July 1757, from T[homas] Pennant, Downing, to an unidentified fellow naturalist, ordering two copies of his new book ('the 1st volume of your History') and telling him of recent additions to his own collection.
The letter contains references to the naturalists 'B. Pontoppidan' [?Erik Pontoppidan, Bishop of Bergen], and [William] Morris of Holyhead.