Six hundred rare books drawn from the collector's vast collections of books, archives, and personal papers assembled for research on the archaeological excavations at Pompeii.

This sketchbook of 60-some leaves was created in the course of Gell's research for the revised edition of Pompeiana (1832). Accompanied by extensive notes, his drawings in pen, ink, and watercolor show general views, architectural details, frescoes, mosaics, house plans, inscriptions, and objects from the site.