A portable monastic libellus, or partial ritual book, describing the administration of rites to an ill monk, the burial rites of a monk or layperson, and the prayers, chants, and processions associated with them; the libellus demonstrates the role of the monks in ensuring proper burial for members of the lay community. The punctus flexus punctuation and the inclusion of St. Hugh of Lincoln, the second-most prominent saint (behind Bruno) in the Carthusian Order, suggest that the manuscript belonged to a Carthusian monastery. The mentions of St. Jerome and St. Katherine of Siena suggest the manuscript may have been tied to the Hieronymites of Fiesole. Includes a hymn in square notation on 4-line staves in red ink (f. 22r-25r).