Inscription: Inscribed in pencil on verso, probably by Ostroff: '01908'. Engraving showing the relationship between the different varieties of Grimmia plant.
Inscription: Handwritten in pencil on recto: 'Tehaphin Pellincula[?]'. Inscribed in pencil on verso, probably by Ostroff: '01909'. Engraving of a fern-like plant.
Mathematical drawing in pencil and ink, the central scale line is in pencil with curves drawn either side in ink with faint intersection lines drawn in pencil. The paper had been folded in half.
Inscription: Handwritten on drawing 'Alicuta July 1817'and on album page; 'Alicante'. Sepia wash drawing of a coastal town on the island of Alicudi showing a fort and church, a single fishing boat is moored at low tide.
Inscription: Inscribed in pencil on verso, possibly by Ostroff: '01917'. Engraving of a botanical specimen, showing various aspects of the bud, leaf and stem.
Inscription: Inscribed in pencil on verso, probably by Ostroff: '01910'. Engraving of a botanical specimen; it shows various sketches of the plant's leaves, buds and stem.