Monks, manuscripts, and sundials : the navicula in medieval England -- Five fifteenth-century sundials -- Manuscript sources about the navicula -- Calendar tables and latitude lists -- Texts, instruments, diagrams and relations between them -- Using a sundial, understanding the heavens? -- The navicula and the organum ptolomei -- How sixteenth-century books redefined a medieval sundial
Summary
Bringing together the surviving material and manuscript evidence, this book looks closely at a fascinating medieval sundial in the form of a ship. It considers who made and used the surviving instruments, as well as studying the scholars who wrote about it
