Recto: The Houses of the Barbarians (Vitruvius, Book 2, Chapter 1, nos. 3, 4); Verso: The Aeropagus in Athens with Cave Houses (Vitruvius, Book 2, Chapter 1, no. 5).

Recto: Front Elevation of a Roman Temple in Ruins (inspired by Giuliano da Sangallo); Verso: Elevation of the Nave of a Roman Basilica in Ruins (? the Basilica Giulia, inspired by Giuliano da Sangallo).

Recto: Temple Types: Amphiprostyle (Vitruvius, Book 3, Chapter 2, no. 4); Verso: Temple Types: Pseudodipteral (Vitruvius, Book 3, Chapter 2, no. 6).

Architectural Study: The Measured Profiles of the Cornice and Entablature of the "Colonnacce" from the Forum Transitorium (the "Palace of Nerva")

Recto: "Libro Primo, Chapo Quarto..." (Vitruvius, Book 1, Chapter 4); Verso: The Fortification of City Walls (Vitruvius, Book 1, Chapter 5).

The Port City of Alexandria (? Allusion to Dinocrates's Building of Alexandria, Vitruvius, Book 2, introduction, no. 1) (recto); Fragmentary Writing ("Libro Primo...") (verso)

Recto: Landscape with Trees and Figures (? Remarks on the Winds and the Lay-out of the City; Vitruvius, Book 1, Chapter 6, nos. 2, 3): Verso: Blank.

Recto: On Timber, the Species of Trees (Vitruvius, Book 2, Chapter 9, no. 4); Verso: On Timber, the Battle of Larignium (Vitruvius, Book 2, Chapter 9, no. 15)..

Recto: Temple Types: in Antis and Prostyle (Vitruvius, Book 3, Chapter 2, nos. 2, 3); Verso: Temple Types: Peripteral (Vitruvius, Book 3, Chapter 2, no. 5).