Compilation, mostly in Latin, of religious, literary, historical, and natural-historical works, including classical and contemporary selections, as well as letters by humanist writers Francesco Petrarca and Donatus Albanzani. Over a quarter of the manuscript is devoted to the De ludo scachorum of Jacobus de Cessolis, a collection of sermons about the proper relationships between a king and various classes of subjects, compared to the rules of chess (f. 1r-56r). Other moderately substantial texts include descriptions of various geographic regions from Honorius of Autun's De imagine mundi (f. 61r-71r); a brief history of the Roman civil wars (f. 71v-92r); and the Computus of Bono da Lucca, which deals with the calendar, lunar cycles, and calculations for determining the date of Easter (f. 109r-124v). The manuscript is a palimpsest, with the lower text from the 14th century, probably legal.