Sheffield Botanical Gardens are public gardens owned by the Sheffield Town Trust. Laid out in the Gardenesque style by Robert Marnock, they were originally opened in 1836 to members only. The Sheffield Town Trust acquired the gardens in 1898 and opened them to the public. A programme of restoration is currently underway. The recently restored glasshouses are important early examples of curvilinear glass structures. The land for the gardens was acquired from farmland owned by Joseph Wilson (of snuff manufacture fame). Sanderson's map of 1835 shows fields with straight edges; the land was probably enclosed in 1788, from common land, as part of the Ecclesall enclosure award. Legibility is invisible of the earlier enclosure landscape despite the gardens remaining substantially unchanged in all their 19th century grandeur.