911 water colours by Adam Forster of Australian flowers, painted between 1916 and 1927.

Over 13,000 negatives, transparencies, and photographs of cattle stations taken between 1951 and 1961, as well as 52 British Hydrographic Office charts and maps of Australia and the Pacific and personal papers of Johnston.

553 books from the 19th to mid-20th century with a particular strength in botany and gardening, among many other subjects.