Treatises, Historical and Miscellaneous, folios 107v-108r

Marvin L. Colker’s Trinity College Dublin Library: Descriptive Catalogue of the Medieval and Renaissance Latin Manuscripts (Dublin, 1991) contains the first full description of this manuscript, identifying this text, rather than simply an account of poets and mythological figures, actually presented a kind of classical handbook for medieval readers. Through articles, diagrams and maps, the book accounts for multiple aspects of classical study including mythology, geography and history. This opening shows small circular diagrams representing the rivers of the classical world. The larger infographic on folio 107v relates to the length of time it takes individual planets to orbit the earth (the word terra is marked in the centre). The seven zones of the earth (including the arctic and temperate) are illustrated on folio 108r, identifying which zones are habitable and which are not. There is also a brief note on 108r referring to the nine Muses of Greek mythology.