Pencil drawing of a row of terraced buildings, with a taller building behind; the drawing probably used a camera obscura and is likely to have been done by Henry Talbot.
Inscription: Inscribed on verso, possibly by Ostroff: '01918'. Drawing of four plants; Bryum aureum, Grimmia conastoma, Buxbaumia aphylla and Dicranum patens.
Inscription: Inscribed on recto: 'Agarii from Trevelyan/ Agaricus Laties'. Inscribed on verso, possibly by Ostroff: '01919'. Watercolour study by Talbot's friend from Harrow, Walter C. Trevelyan and shows the inner surface of a fungus.
Inscription: Inscribed on verso, possibly by Ostroff: '01920'. Watercolour study by Talbot's friend from Harrow, Walter C. Trevelyan and shows the outer surface of a fungus.